31662132152 has 32 divisors (see below), whose sum is σ = 71418345600. Its totient is φ = 12855301344.

The previous prime is 31662132071. The next prime is 31662132191. The reversal of 31662132152 is 25123126613.

It is a happy number.

It is a super-2 number, since 2×31662132152² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14877758 + ... + 14879885.

It is an arithmetic number, because the mean of its divisors is an integer number (2231823300).

Almost surely, 2^31662132152 is an apocalyptic number.

It is an amenable number.

31662132152 is an abundant number, since it is smaller than the sum of its proper divisors (39756213448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31662132152 is a wasteful number, since it uses less digits than its factorization.

31662132152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29757675 (or 29757671 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

Adding to 31662132152 its reverse (25123126613), we get a palindrome (56785258765).

The spelling of 31662132152 in words is "thirty-one billion, six hundred sixty-two million, one hundred thirty-two thousand, one hundred fifty-two".