23215505156 has 12 divisors (see below), whose sum is σ = 40876381392. Its totient is φ = 11536539048.

The previous prime is 23215505143. The next prime is 23215505161. The reversal of 23215505156 is 65150551232.

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, 17802650 + ... + 17803953.

It is an arithmetic number, because the mean of its divisors is an integer number (3406365116).

Almost surely, 2^23215505156 is an apocalyptic number.

It is an amenable number.

23215505156 is a deficient number, since it is larger than the sum of its proper divisors (17660876236).

23215505156 is a wasteful number, since it uses less digits than its factorization.

23215505156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35606770 (or 35606768 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 23215505156 in words is "twenty-three billion, two hundred fifteen million, five hundred five thousand, one hundred fifty-six".