156739968 has 512 divisors, whose sum is σ = 626688000. Its totient is φ = 37324800.

The previous prime is 156739909. The next prime is 156739997. The reversal of 156739968 is 869937651.

156739968 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5056113 + ... + 5056143.

It is an arithmetic number, because the mean of its divisors is an integer number (1224000).

Almost surely, 2^156739968 is an apocalyptic number.

156739968 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 156739968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313344000).

156739968 is an abundant number, since it is smaller than the sum of its proper divisors (469948032).

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

156739968 is a wasteful number, since it uses less digits than its factorization.

156739968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 73 counting only the distinct ones).

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

The square root of 156739968 is about 12519.5833796497. The cubic root of 156739968 is about 539.1710738884.

The spelling of 156739968 in words is "one hundred fifty-six million, seven hundred thirty-nine thousand, nine hundred sixty-eight".