156944506940 has 48 divisors (see below), whose sum is σ = 375814639872. Its totient is φ = 54539990016.

The previous prime is 156944506907. The next prime is 156944506949. The reversal of 156944506940 is 49605449651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156944506949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17749484 + ... + 17758323.

It is an arithmetic number, because the mean of its divisors is an integer number (7829471664).

Almost surely, 2^156944506940 is an apocalyptic number.

156944506940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156944506940 is an abundant number, since it is smaller than the sum of its proper divisors (218870132932).

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

156944506940 is a wasteful number, since it uses less digits than its factorization.

156944506940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35507846 (or 35507844 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 156944506940 in words is "one hundred fifty-six billion, nine hundred forty-four million, five hundred six thousand, nine hundred forty".