80634666 has 32 divisors (see below), whose sum is σ = 186536448. Its totient is φ = 22759920.

The previous prime is 80634647. The next prime is 80634707. The reversal of 80634666 is 66643608.

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 in 15 ways as a sum of consecutive naturals, for example, 8080 + ... + 15051.

It is an arithmetic number, because the mean of its divisors is an integer number (5829264).

Almost surely, 2^80634666 is an apocalyptic number.

80634666 is an abundant number, since it is smaller than the sum of its proper divisors (105901782).

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

80634666 is a wasteful number, since it uses less digits than its factorization.

80634666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23226.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 80634666 is about 8979.6807292910. The cubic root of 80634666 is about 432.0233933663.

The spelling of 80634666 in words is "eighty million, six hundred thirty-four thousand, six hundred sixty-six".