31664006231 has 16 divisors (see below), whose sum is σ = 37240304640. Its totient is φ = 26542170720.

The previous prime is 31664006197. The next prime is 31664006279. The reversal of 31664006231 is 13260046613.

It is a de Polignac number, because none of the positive numbers 2^k-31664006231 is a prime.

It is a super-2 number, since 2×31664006231² (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 (31664006281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10946 + ... + 251888.

It is an arithmetic number, because the mean of its divisors is an integer number (2327519040).

Almost surely, 2^31664006231 is an apocalyptic number.

31664006231 is a deficient number, since it is larger than the sum of its proper divisors (5576298409).

31664006231 is a wasteful number, since it uses less digits than its factorization.

31664006231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241886.

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

The spelling of 31664006231 in words is "thirty-one billion, six hundred sixty-four million, six thousand, two hundred thirty-one".