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20068167516 = 2239371784789
BaseRepresentation
bin10010101100001001…
…111110111101011100
31220210120210112111120
4102230021332331130
5312044422330031
613115202250540
71310210416005
oct225411767534
956716715446
1020068167516
118568a59311
123a80956a50
131b7a854347
14d8538c1ac
157c6c33a96
hex4ac27ef5c

20068167516 has 24 divisors (see below), whose sum is σ = 46875724560. Its totient is φ = 6682246272.

The previous prime is 20068167503. The next prime is 20068167521. The reversal of 20068167516 is 61576186002.

It is a super-2 number, since 2×200681675162 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881151 + ... + 903638.

It is an arithmetic number, because the mean of its divisors is an integer number (1953155190).

Almost surely, 220068167516 is an apocalyptic number.

It is an amenable number.

20068167516 is an abundant number, since it is smaller than the sum of its proper divisors (26807557044).

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

20068167516 is a wasteful number, since it uses less digits than its factorization.

20068167516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785733 (or 1785731 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 20068167516 in words is "twenty billion, sixty-eight million, one hundred sixty-seven thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 12 937 1874 2811 3748 5622 11244 1784789 3569578 5354367 7139156 10708734 21417468 1672347293 3344694586 5017041879 6689389172 10034083758 20068167516