23911532655 has 16 divisors (see below), whose sum is σ = 38260867200. Its totient is φ = 12752012448.

The previous prime is 23911532647. The next prime is 23911532657. The reversal of 23911532655 is 55623511932.

It is not a de Polignac number, because 23911532655 - 2³ = 23911532647 is a prime.

It is a super-2 number, since 2×23911532655² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23911532657) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 255024 + ... + 335946.

It is an arithmetic number, because the mean of its divisors is an integer number (2391304200).

Almost surely, 2^23911532655 is an apocalyptic number.

23911532655 is a deficient number, since it is larger than the sum of its proper divisors (14349334545).

23911532655 is a wasteful number, since it uses less digits than its factorization.

23911532655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100630.

The product of its digits is 243000, while the sum is 42.

The spelling of 23911532655 in words is "twenty-three billion, nine hundred eleven million, five hundred thirty-two thousand, six hundred fifty-five".