168787056936 has 128 divisors (see below), whose sum is σ = 450808243200. Its totient is φ = 52478668800.

The previous prime is 168787056877. The next prime is 168787056983. The reversal of 168787056936 is 639650787861.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20831286 + ... + 20839386.

It is an arithmetic number, because the mean of its divisors is an integer number (3521939400).

Almost surely, 2^168787056936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168787056936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225404121600).

168787056936 is an abundant number, since it is smaller than the sum of its proper divisors (282021186264).

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

168787056936 is a wasteful number, since it uses less digits than its factorization.

168787056936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579 (or 8575 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 66.

The spelling of 168787056936 in words is "one hundred sixty-eight billion, seven hundred eighty-seven million, fifty-six thousand, nine hundred thirty-six".