167256656 has 80 divisors (see below), whose sum is σ = 388546560. Its totient is φ = 68238720.

The previous prime is 167256643. The next prime is 167256751. The reversal of 167256656 is 656652761.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 232265 + ... + 232983.

It is an arithmetic number, because the mean of its divisors is an integer number (4856832).

Almost surely, 2^167256656 is an apocalyptic number.

167256656 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 167256656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194273280).

167256656 is an abundant number, since it is smaller than the sum of its proper divisors (221289904).

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

167256656 is a wasteful number, since it uses less digits than its factorization.

167256656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 826 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The square root of 167256656 is about 12932.7744896445. The cubic root of 167256656 is about 550.9698106984.

The spelling of 167256656 in words is "one hundred sixty-seven million, two hundred fifty-six thousand, six hundred fifty-six".