32190978160 has 40 divisors (see below), whose sum is σ = 81648028656. Its totient is φ = 11705809920.

The previous prime is 32190978143. The next prime is 32190978173. The reversal of 32190978160 is 6187909123.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 32190978160.

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, 18289449 + ... + 18291208.

Almost surely, 2^32190978160 is an apocalyptic number.

It is an amenable number.

32190978160 is an abundant number, since it is smaller than the sum of its proper divisors (49457050496).

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

32190978160 is a wasteful number, since it uses less digits than its factorization.

32190978160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36580681 (or 36580675 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 32190978160 in words is "thirty-two billion, one hundred ninety million, nine hundred seventy-eight thousand, one hundred sixty".