80012656 has 10 divisors (see below), whose sum is σ = 155024552. Its totient is φ = 40006320.

The previous prime is 80012651. The next prime is 80012683. The reversal of 80012656 is 65621008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80012651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500380 + ... + 2500411.

Almost surely, 2^80012656 is an apocalyptic number.

It is an amenable number.

80012656 is a deficient number, since it is larger than the sum of its proper divisors (75011896).

80012656 is a wasteful number, since it uses less digits than its factorization.

80012656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000799 (or 5000793 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 80012656 is about 8944.9793739281. The cubic root of 80012656 is about 430.9096589128.

It can be divided in two parts, 800 and 12656, that added together give a square (13456 = 116²).

The spelling of 80012656 in words is "eighty million, twelve thousand, six hundred fifty-six".