80766166 has 16 divisors (see below), whose sum is σ = 131670000. Its totient is φ = 36933408.

The previous prime is 80766151. The next prime is 80766173. The reversal of 80766166 is 66166708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11416 + ... + 17083.

It is an arithmetic number, because the mean of its divisors is an integer number (8229375).

Almost surely, 2^80766166 is an apocalyptic number.

80766166 is a deficient number, since it is larger than the sum of its proper divisors (50903834).

80766166 is a wasteful number, since it uses less digits than its factorization.

80766166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28623.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 80766166 is about 8986.9998330922. Note that the first 3 decimals coincide. The cubic root of 80766166 is about 432.2581154953.

The spelling of 80766166 in words is "eighty million, seven hundred sixty-six thousand, one hundred sixty-six".