156997368 has 96 divisors (see below), whose sum is σ = 467026560. Its totient is φ = 47250240.

The previous prime is 156997319. The next prime is 156997391. The reversal of 156997368 is 863799651.

156997368 is a `hidden beast` number, since 1 + 569 + 9 + 73 + 6 + 8 = 666.

156997368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131671 + ... + 132857.

It is an arithmetic number, because the mean of its divisors is an integer number (4864860).

Almost surely, 2^156997368 is an apocalyptic number.

156997368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156997368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233513280).

156997368 is an abundant number, since it is smaller than the sum of its proper divisors (310029192).

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

156997368 is a wasteful number, since it uses less digits than its factorization.

156997368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1370 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 156997368 is about 12529.8590574675. The cubic root of 156997368 is about 539.4660565814.

The spelling of 156997368 in words is "one hundred fifty-six million, nine hundred ninety-seven thousand, three hundred sixty-eight".