163557002552 has 32 divisors (see below), whose sum is σ = 320051584800. Its totient is φ = 78210996864.

The previous prime is 163557002461. The next prime is 163557002579. The reversal of 163557002552 is 255200755361.

It is a happy number.

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, 1208474 + ... + 1336982.

It is an arithmetic number, because the mean of its divisors is an integer number (10001612025).

Almost surely, 2^163557002552 is an apocalyptic number.

It is an amenable number.

163557002552 is a deficient number, since it is larger than the sum of its proper divisors (156494582248).

163557002552 is a wasteful number, since it uses less digits than its factorization.

163557002552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135455 (or 135451 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 41.

The spelling of 163557002552 in words is "one hundred sixty-three billion, five hundred fifty-seven million, two thousand, five hundred fifty-two".