31660954660 has 12 divisors (see below), whose sum is σ = 66488004828. Its totient is φ = 12664381856.

The previous prime is 31660954631. The next prime is 31660954667. The reversal of 31660954660 is 6645906613.

It can be written as a sum of positive squares in 2 ways, for example, as 5477184064 + 26183770596 = 74008^2 + 161814^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31660954660.

It is not an unprimeable number, because it can be changed into a prime (31660954667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791523847 + ... + 791523886.

It is an arithmetic number, because the mean of its divisors is an integer number (5540667069).

Almost surely, 2^31660954660 is an apocalyptic number.

It is an amenable number.

31660954660 is an abundant number, since it is smaller than the sum of its proper divisors (34827050168).

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

31660954660 is a wasteful number, since it uses less digits than its factorization.

31660954660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583047742 (or 1583047740 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 31660954660 in words is "thirty-one billion, six hundred sixty million, nine hundred fifty-four thousand, six hundred sixty".