32120990163 has 12 divisors (see below), whose sum is σ = 47893663168. Its totient is φ = 20723219280.

The previous prime is 32120990159. The next prime is 32120990171. The reversal of 32120990163 is 36109902123.

It is a happy number.

It is not a de Polignac number, because 32120990163 - 2² = 32120990159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32120990563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57564220 + ... + 57564777.

Almost surely, 2^32120990163 is an apocalyptic number.

32120990163 is a deficient number, since it is larger than the sum of its proper divisors (15772673005).

32120990163 is a wasteful number, since it uses less digits than its factorization.

32120990163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115129034 (or 115129031 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 32120990163 in words is "thirty-two billion, one hundred twenty million, nine hundred ninety thousand, one hundred sixty-three".