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168981463360182 = 23112560325202427
BaseRepresentation
bin100110011011000000010000…
…000110001110001010110110
3211011022110200201120000010210
4212123000100012032022312
5134122043014110011212
61355221002415130250
750410336122205464
oct4633002006161266
9734273621500123
10168981463360182
114992a6aa802570
1216b518a6213986
137339b64410495
142da2a64431834
1514808e04e153c
hex99b01018e2b6

168981463360182 has 16 divisors (see below), whose sum is σ = 368686829149632. Its totient is φ = 51206504048520.

The previous prime is 168981463360147. The next prime is 168981463360183. The reversal of 168981463360182 is 281063364189861.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 2560325202427 = 168981463360182 / (1 + 6 + 8 + 9 + 8 + 1 + 4 + 6 + 3 + 3 + 6 + 0 + 1 + 8 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168981463360183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280162601148 + ... + 1280162601279.

It is an arithmetic number, because the mean of its divisors is an integer number (23042926821852).

Almost surely, 2168981463360182 is an apocalyptic number.

168981463360182 is an abundant number, since it is smaller than the sum of its proper divisors (199705365789450).

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

168981463360182 is a wasteful number, since it uses less digits than its factorization.

168981463360182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560325202443.

The product of its (nonzero) digits is 71663616, while the sum is 66.

The spelling of 168981463360182 in words is "one hundred sixty-eight trillion, nine hundred eighty-one billion, four hundred sixty-three million, three hundred sixty thousand, one hundred eighty-two".

Divisors: 1 2 3 6 11 22 33 66 2560325202427 5120650404854 7680975607281 15361951214562 28163577226697 56327154453394 84490731680091 168981463360182