23912520155 has 8 divisors (see below), whose sum is σ = 28696334832. Its totient is φ = 19129142368.

The previous prime is 23912520143. The next prime is 23912520223. The reversal of 23912520155 is 55102521932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23912520155 - 2⁸ = 23912519899 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 26537 + ... + 220293.

It is an arithmetic number, because the mean of its divisors is an integer number (3587041854).

Almost surely, 2^23912520155 is an apocalyptic number.

23912520155 is a deficient number, since it is larger than the sum of its proper divisors (4783814677).

23912520155 is a wasteful number, since it uses less digits than its factorization.

23912520155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218445.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 23912520155 in words is "twenty-three billion, nine hundred twelve million, five hundred twenty thousand, one hundred fifty-five".