80566956 has 36 divisors (see below), whose sum is σ = 205017904. Its totient is φ = 26676000.

The previous prime is 80566951. The next prime is 80566963. The reversal of 80566956 is 65966508.

80566956 is a `hidden beast` number, since 80 + 566 + 9 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (80566951) 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, 1975 + ... + 12846.

Almost surely, 2^80566956 is an apocalyptic number.

It is an amenable number.

80566956 is an abundant number, since it is smaller than the sum of its proper divisors (124450948).

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

80566956 is a wasteful number, since it uses less digits than its factorization.

80566956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14982 (or 14977 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 80566956 is about 8975.9097589047. The cubic root of 80566956 is about 431.9024342425.

The spelling of 80566956 in words is "eighty million, five hundred sixty-six thousand, nine hundred fifty-six".