163213765696 has 28 divisors (see below), whose sum is σ = 327779463312. Its totient is φ = 80623664768.

The previous prime is 163213765679. The next prime is 163213765703. The reversal of 163213765696 is 696567312361.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15357430 + ... + 15368053.

It is an arithmetic number, because the mean of its divisors is an integer number (11706409404).

Almost surely, 2^163213765696 is an apocalyptic number.

163213765696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163213765696 is an abundant number, since it is smaller than the sum of its proper divisors (164565697616).

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

163213765696 is an equidigital number, since it uses as much as digits as its factorization.

163213765696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30725578 (or 30725568 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 55.

The spelling of 163213765696 in words is "one hundred sixty-three billion, two hundred thirteen million, seven hundred sixty-five thousand, six hundred ninety-six".