163255456 has 72 divisors (see below), whose sum is σ = 402694740. Its totient is φ = 64576512.

The previous prime is 163255451. The next prime is 163255493. The reversal of 163255456 is 654552361.

It can be written as a sum of positive squares in 2 ways, for example, as 160883856 + 2371600 = 12684^2 + 1540^2 .

It is a super-3 number, since 3×163255456³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (163255451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16380 + ... + 24388.

Almost surely, 2^163255456 is an apocalyptic number.

163255456 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 163255456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201347370).

163255456 is an abundant number, since it is smaller than the sum of its proper divisors (239439284).

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

163255456 is a wasteful number, since it uses less digits than its factorization.

163255456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8046 (or 8031 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The square root of 163255456 is about 12777.1458471757. The cubic root of 163255456 is about 546.5407747650.

The spelling of 163255456 in words is "one hundred sixty-three million, two hundred fifty-five thousand, four hundred fifty-six".