156231151656 has 32 divisors (see below), whose sum is σ = 395283641760. Its totient is φ = 51449615552.

The previous prime is 156231151651. The next prime is 156231151673. The reversal of 156231151656 is 656151132651.

It is not an unprimeable number, because it can be changed into a prime (156231151651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39212655 + ... + 39216638.

It is an arithmetic number, because the mean of its divisors is an integer number (12352613805).

Almost surely, 2^156231151656 is an apocalyptic number.

It is an amenable number.

156231151656 is an abundant number, since it is smaller than the sum of its proper divisors (239052490104).

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

156231151656 is a wasteful number, since it uses less digits than its factorization.

156231151656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78429385 (or 78429381 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The spelling of 156231151656 in words is "one hundred fifty-six billion, two hundred thirty-one million, one hundred fifty-one thousand, six hundred fifty-six".