163195699992 has 128 divisors (see below), whose sum is σ = 472339123200. Its totient is φ = 46558983168.

The previous prime is 163195699987. The next prime is 163195700027. The reversal of 163195699992 is 299996591361.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14253 + ... + 571484.

It is an arithmetic number, because the mean of its divisors is an integer number (3690149400).

Almost surely, 2^163195699992 is an apocalyptic number.

163195699992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163195699992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236169561600).

163195699992 is an abundant number, since it is smaller than the sum of its proper divisors (309143423208).

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

163195699992 is a wasteful number, since it uses less digits than its factorization.

163195699992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585825 (or 585821 counting only the distinct ones).

The product of its digits is 63772920, while the sum is 69.

The spelling of 163195699992 in words is "one hundred sixty-three billion, one hundred ninety-five million, six hundred ninety-nine thousand, nine hundred ninety-two".