163506566105632 has 24 divisors (see below), whose sum is σ = 321905043565056. Its totient is φ = 81752904247872.

The previous prime is 163506566105591. The next prime is 163506566105653. The reversal of 163506566105632 is 236501665605361.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4758408 + ... + 18699079.

It is an arithmetic number, because the mean of its divisors is an integer number (13412710148544).

Almost surely, 2^{163506566105632} is an apocalyptic number.

It is an amenable number.

163506566105632 is a deficient number, since it is larger than the sum of its proper divisors (158398477459424).

163506566105632 is a wasteful number, since it uses less digits than its factorization.

163506566105632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23675320 (or 23675312 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 55.

The spelling of 163506566105632 in words is "one hundred sixty-three trillion, five hundred six billion, five hundred sixty-six million, one hundred five thousand, six hundred thirty-two".