163531166112 has 96 divisors (see below), whose sum is σ = 493413076800. Its totient is φ = 52630712064.

The previous prime is 163531166087. The next prime is 163531166147. The reversal of 163531166112 is 211661135361.

163531166112 is a `hidden beast` number, since 1 + 6 + 3 + 5 + 31 + 1 + 6 + 611 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 3238258 + ... + 3288369.

It is an arithmetic number, because the mean of its divisors is an integer number (5139719550).

Almost surely, 2^163531166112 is an apocalyptic number.

163531166112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163531166112 is an abundant number, since it is smaller than the sum of its proper divisors (329881910688).

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

163531166112 is a wasteful number, since it uses less digits than its factorization.

163531166112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526675 (or 6526661 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The spelling of 163531166112 in words is "one hundred sixty-three billion, five hundred thirty-one million, one hundred sixty-six thousand, one hundred twelve".