163255616 has 28 divisors (see below), whose sum is σ = 335135220. Its totient is φ = 78812160.

The previous prime is 163255597. The next prime is 163255621. The reversal of 163255616 is 616552361.

163255616 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30913600 + 132342016 = 5560^2 + 11504^2 .

It is a congruent number.

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, 42125 + ... + 45836.

It is an arithmetic number, because the mean of its divisors is an integer number (11969115).

Almost surely, 2^163255616 is an apocalyptic number.

163255616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163255616 is an abundant number, since it is smaller than the sum of its proper divisors (171879604).

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

163255616 is an equidigital number, since it uses as much as digits as its factorization.

163255616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88002 (or 87992 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 163255616 is about 12777.1521083534. The cubic root of 163255616 is about 546.5409533123.

The spelling of 163255616 in words is "one hundred sixty-three million, two hundred fifty-five thousand, six hundred sixteen".