80418666 has 16 divisors (see below), whose sum is σ = 160936704. Its totient is φ = 26789664.

The previous prime is 80418631. The next prime is 80418677. The reversal of 80418666 is 66681408.

It is a Curzon 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, 10206 + ... + 16278.

It is an arithmetic number, because the mean of its divisors is an integer number (10058544).

Almost surely, 2^80418666 is an apocalyptic number.

80418666 is an abundant number, since it is smaller than the sum of its proper divisors (80518038).

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

80418666 is a wasteful number, since it uses less digits than its factorization.

80418666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8285.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 80418666 is about 8967.6455103890. The cubic root of 80418666 is about 431.6372877116.

The spelling of 80418666 in words is "eighty million, four hundred eighteen thousand, six hundred sixty-six".