231263634664155 has 32 divisors (see below), whose sum is σ = 370209636864000. Its totient is φ = 123278000945792.

The previous prime is 231263634664093. The next prime is 231263634664159. The reversal of 231263634664155 is 551466436362132.

It is a happy number.

231263634664155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231263634664155 - 2²¹ = 231263632567003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231263634664095 and 231263634664104.

It is not an unprimeable number, because it can be changed into a prime (231263634664159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1973736382 + ... + 1973853548.

It is an arithmetic number, because the mean of its divisors is an integer number (11569051152000).

Almost surely, 2^{231263634664155} is an apocalyptic number.

231263634664155 is a deficient number, since it is larger than the sum of its proper divisors (138946002199845).

231263634664155 is a wasteful number, since it uses less digits than its factorization.

231263634664155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182843.

The product of its digits is 55987200, while the sum is 57.

The spelling of 231263634664155 in words is "two hundred thirty-one trillion, two hundred sixty-three billion, six hundred thirty-four million, six hundred sixty-four thousand, one hundred fifty-five".