156996507078 has 12 divisors (see below), whose sum is σ = 340159098708. Its totient is φ = 52332169020.

The previous prime is 156996507049. The next prime is 156996507079. The reversal of 156996507078 is 870705699651.

156996507078 is a `hidden beast` number, since 1 + 56 + 9 + 9 + 6 + 507 + 0 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156996507079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4361014068 + ... + 4361014103.

It is an arithmetic number, because the mean of its divisors is an integer number (28346591559).

Almost surely, 2^156996507078 is an apocalyptic number.

156996507078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

156996507078 is an abundant number, since it is smaller than the sum of its proper divisors (183162591630).

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

156996507078 is a wasteful number, since it uses less digits than its factorization.

156996507078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722028179 (or 8722028176 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 63.

The spelling of 156996507078 in words is "one hundred fifty-six billion, nine hundred ninety-six million, five hundred seven thousand, seventy-eight".