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55436666130 = 23251948766569
BaseRepresentation
bin110011101000010010…
…000110010100010010
312022002110212102111200
4303220102012110102
51402013241304010
641244532052030
74001525613216
oct635022062422
9168073772450
1055436666130
112156860985a
12a8b1764016
1352c620a131
14297c7bc946
151696d03cc0
hexce8486512

55436666130 has 96 divisors (see below), whose sum is σ = 152035228800. Its totient is φ = 13976084736.

The previous prime is 55436666119. The next prime is 55436666167. The reversal of 55436666130 is 3166663455.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 799486 + ... + 866054.

It is an arithmetic number, because the mean of its divisors is an integer number (1583700300).

Almost surely, 255436666130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55436666130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76017614400).

55436666130 is an abundant number, since it is smaller than the sum of its proper divisors (96598562670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55436666130 is a wasteful number, since it uses less digits than its factorization.

55436666130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67088 (or 67085 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 55436666130 in words is "fifty-five billion, four hundred thirty-six million, six hundred sixty-six thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 57 90 95 114 171 190 285 342 487 570 855 974 1461 1710 2435 2922 4383 4870 7305 8766 9253 14610 18506 21915 27759 43830 46265 55518 66569 83277 92530 133138 138795 166554 199707 277590 332845 399414 416385 599121 665690 832770 998535 1198242 1264811 1997070 2529622 2995605 3794433 5991210 6324055 7588866 11383299 12648110 18972165 22766598 32419103 37944330 56916495 64838206 97257309 113832990 162095515 194514618 291771927 324191030 486286545 583543854 615962957 972573090 1231925914 1458859635 1847888871 2917719270 3079814785 3695777742 5543666613 6159629570 9239444355 11087333226 18478888710 27718333065 55436666130