163557432304 has 20 divisors (see below), whose sum is σ = 362162886064. Its totient is φ = 70096042368.

The previous prime is 163557432277. The next prime is 163557432323. The reversal of 163557432304 is 403234755361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730166997 + ... + 730167220.

Almost surely, 2^163557432304 is an apocalyptic number.

163557432304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163557432304 is an abundant number, since it is smaller than the sum of its proper divisors (198605453760).

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

163557432304 is a wasteful number, since it uses less digits than its factorization.

163557432304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460334232 (or 1460334226 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 43.

The spelling of 163557432304 in words is "one hundred sixty-three billion, five hundred fifty-seven million, four hundred thirty-two thousand, three hundred four".