231163664 has 10 divisors (see below), whose sum is σ = 447879630. Its totient is φ = 115581824.

The previous prime is 231163663. The next prime is 231163703. The reversal of 231163664 is 466361132.

It can be written as a sum of positive squares in only one way, i.e., 150307600 + 80856064 = 12260^2 + 8992^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231163664.

It is not an unprimeable number, because it can be changed into a prime (231163661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7223849 + ... + 7223880.

It is an arithmetic number, because the mean of its divisors is an integer number (44787963).

Almost surely, 2^231163664 is an apocalyptic number.

It is an amenable number.

231163664 is a deficient number, since it is larger than the sum of its proper divisors (216715966).

231163664 is a wasteful number, since it uses less digits than its factorization.

231163664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14447737 (or 14447731 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 231163664 is about 15204.0673505480. The cubic root of 231163664 is about 613.7241171647.

The spelling of 231163664 in words is "two hundred thirty-one million, one hundred sixty-three thousand, six hundred sixty-four".