156606001172 has 12 divisors (see below), whose sum is σ = 290181708180. Its totient is φ = 73696941696.

The previous prime is 156606001157. The next prime is 156606001187. The reversal of 156606001172 is 271100606651.

It is an interprime number because it is at equal distance from previous prime (156606001157) and next prime (156606001187).

It can be written as a sum of positive squares in 2 ways, for example, as 64599338896 + 92006662276 = 254164^2 + 303326^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151514647 + ... + 1151514782.

It is an arithmetic number, because the mean of its divisors is an integer number (24181809015).

Almost surely, 2^156606001172 is an apocalyptic number.

It is an amenable number.

156606001172 is a deficient number, since it is larger than the sum of its proper divisors (133575707008).

156606001172 is a wasteful number, since it uses less digits than its factorization.

156606001172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303029450 (or 2303029448 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 156606001172 in words is "one hundred fifty-six billion, six hundred six million, one thousand, one hundred seventy-two".