31532660216 has 16 divisors (see below), whose sum is σ = 60092980440. Its totient is φ = 15507865440.

The previous prime is 31532660191. The next prime is 31532660231. The reversal of 31532660216 is 61206623513.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32307566 + ... + 32308541.

Almost surely, 2^31532660216 is an apocalyptic number.

It is an amenable number.

31532660216 is a deficient number, since it is larger than the sum of its proper divisors (28560320224).

31532660216 is a wasteful number, since it uses less digits than its factorization.

31532660216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64616174 (or 64616170 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 31532660216 in words is "thirty-one billion, five hundred thirty-two million, six hundred sixty thousand, two hundred sixteen".