163208331660 has 96 divisors (see below), whose sum is σ = 520202414592. Its totient is φ = 37845406720.

The previous prime is 163208331619. The next prime is 163208331679. The reversal of 163208331660 is 66133802361.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5360589 + ... + 5390948.

It is an arithmetic number, because the mean of its divisors is an integer number (5418775152).

Almost surely, 2^163208331660 is an apocalyptic number.

163208331660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163208331660 is an abundant number, since it is smaller than the sum of its proper divisors (356994082932).

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

163208331660 is a wasteful number, since it uses less digits than its factorization.

163208331660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751583 (or 10751581 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 163208331660 in words is "one hundred sixty-three billion, two hundred eight million, three hundred thirty-one thousand, six hundred sixty".