80862666 has 16 divisors (see below), whose sum is σ = 162005184. Its totient is φ = 26907584.

The previous prime is 80862647. The next prime is 80862679. The reversal of 80862666 is 66626808.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 7806 + ... + 14921.

It is an arithmetic number, because the mean of its divisors is an integer number (10125324).

Almost surely, 2^80862666 is an apocalyptic number.

80862666 is an abundant number, since it is smaller than the sum of its proper divisors (81142518).

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

80862666 is a wasteful number, since it uses less digits than its factorization.

80862666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23325.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 80862666 is about 8992.3670965992. The cubic root of 80862666 is about 432.4302020190.

The spelling of 80862666 in words is "eighty million, eight hundred sixty-two thousand, six hundred sixty-six".