156968780 has 24 divisors (see below), whose sum is σ = 330811152. Its totient is φ = 62563392.

The previous prime is 156968759. The next prime is 156968789. The reversal of 156968780 is 87869651.

It is a happy number.

156968780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (156968789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8207 + ... + 19526.

It is an arithmetic number, because the mean of its divisors is an integer number (13783798).

Almost surely, 2^156968780 is an apocalyptic number.

156968780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156968780 is an abundant number, since it is smaller than the sum of its proper divisors (173842372).

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

156968780 is a wasteful number, since it uses less digits than its factorization.

156968780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28025 (or 28023 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 156968780 is about 12528.7182105753. The cubic root of 156968780 is about 539.4333104022.

The spelling of 156968780 in words is "one hundred fifty-six million, nine hundred sixty-eight thousand, seven hundred eighty".