163512181164 has 24 divisors (see below), whose sum is σ = 398116615680. Its totient is φ = 52134318544.

The previous prime is 163512181121. The next prime is 163512181169. The reversal of 163512181164 is 461181215361.

It is not an unprimeable number, because it can be changed into a prime (163512181169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296217444 + ... + 296217995.

It is an arithmetic number, because the mean of its divisors is an integer number (16588192320).

Almost surely, 2^163512181164 is an apocalyptic number.

It is an amenable number.

163512181164 is an abundant number, since it is smaller than the sum of its proper divisors (234604434516).

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

163512181164 is a wasteful number, since it uses less digits than its factorization.

163512181164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592435469 (or 592435467 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The spelling of 163512181164 in words is "one hundred sixty-three billion, five hundred twelve million, one hundred eighty-one thousand, one hundred sixty-four".