163270656 has 156 divisors (see below), whose sum is σ = 487266208. Its totient is φ = 52641792.

The previous prime is 163270637. The next prime is 163270673. The reversal of 163270656 is 656072361.

It is a super-2 number, since 2×163270656² = 53314614221340672, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 163270656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1585101 + ... + 1585203.

Almost surely, 2^163270656 is an apocalyptic number.

163270656 is a gapful number since it is divisible by the number (16) 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 163270656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243633104).

163270656 is an abundant number, since it is smaller than the sum of its proper divisors (323995552).

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

163270656 is a wasteful number, since it uses less digits than its factorization.

163270656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 163270656 is about 12777.7406453567. The cubic root of 163270656 is about 546.5577362440.

The spelling of 163270656 in words is "one hundred sixty-three million, two hundred seventy thousand, six hundred fifty-six".