163255020 has 24 divisors (see below), whose sum is σ = 457114224. Its totient is φ = 43534656.

The previous prime is 163255019. The next prime is 163255067. The reversal of 163255020 is 20552361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360399 + ... + 1360518.

It is an arithmetic number, because the mean of its divisors is an integer number (19046426).

Almost surely, 2^163255020 is an apocalyptic number.

163255020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163255020 is an abundant number, since it is smaller than the sum of its proper divisors (293859204).

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

163255020 is a wasteful number, since it uses less digits than its factorization.

163255020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720929 (or 2720927 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 163255020 is about 12777.1287854510. The cubic root of 163255020 is about 546.5402882228.

The spelling of 163255020 in words is "one hundred sixty-three million, two hundred fifty-five thousand, twenty".