163953812932 has 48 divisors (see below), whose sum is σ = 353188807552. Its totient is φ = 64850284800.

The previous prime is 163953812923. The next prime is 163953812983. The reversal of 163953812932 is 239218359361.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 163953812932.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2428432 + ... + 2495032.

Almost surely, 2^163953812932 is an apocalyptic number.

It is an amenable number.

163953812932 is an abundant number, since it is smaller than the sum of its proper divisors (189234994620).

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

163953812932 is a wasteful number, since it uses less digits than its factorization.

163953812932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73388 (or 73386 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 52.

The spelling of 163953812932 in words is "one hundred sixty-three billion, nine hundred fifty-three million, eight hundred twelve thousand, nine hundred thirty-two".