80656256 has 16 divisors (see below), whose sum is σ = 160682640. Its totient is φ = 40328064.

The previous prime is 80656249. The next prime is 80656271. The reversal of 80656256 is 65265608.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314936 + ... + 315191.

It is an arithmetic number, because the mean of its divisors is an integer number (10042665).

Almost surely, 2^80656256 is an apocalyptic number.

It is an amenable number.

80656256 is a deficient number, since it is larger than the sum of its proper divisors (80026384).

80656256 is an equidigital number, since it uses as much as digits as its factorization.

80656256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630141 (or 630129 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 80656256 is about 8980.8828073859. The cubic root of 80656256 is about 432.0619481351.

It can be divided in two parts, 80656 and 256, that multiplied together give a square (20647936 = 4544²).

The spelling of 80656256 in words is "eighty million, six hundred fifty-six thousand, two hundred fifty-six".