156677712506 has 32 divisors (see below), whose sum is σ = 270955117440. Its totient is φ = 66557869056.

The previous prime is 156677712473. The next prime is 156677712523. The reversal of 156677712506 is 605217776651.

156677712506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156677712506² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230125 + ... + 1351503.

It is an arithmetic number, because the mean of its divisors is an integer number (8467347420).

Almost surely, 2^156677712506 is an apocalyptic number.

156677712506 is a deficient number, since it is larger than the sum of its proper divisors (114277404934).

156677712506 is a wasteful number, since it uses less digits than its factorization.

156677712506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122198.

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 156677712506 in words is "one hundred fifty-six billion, six hundred seventy-seven million, seven hundred twelve thousand, five hundred six".