32131663690 has 32 divisors (see below), whose sum is σ = 67085990784. Its totient is φ = 10852142400.

The previous prime is 32131663661. The next prime is 32131663703. The reversal of 32131663690 is 9636613123.

It is a super-2 number, since 2×32131663690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3420861 + ... + 3430240.

It is an arithmetic number, because the mean of its divisors is an integer number (2096437212).

Almost surely, 2^32131663690 is an apocalyptic number.

32131663690 is an abundant number, since it is smaller than the sum of its proper divisors (34954327094).

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

32131663690 is a wasteful number, since it uses less digits than its factorization.

32131663690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6851182.

The product of its (nonzero) digits is 104976, while the sum is 40.

The spelling of 32131663690 in words is "thirty-two billion, one hundred thirty-one million, six hundred sixty-three thousand, six hundred ninety".