82506664 has 32 divisors (see below), whose sum is σ = 163980000. Its totient is φ = 38809152.

The previous prime is 82506659. The next prime is 82506679. The reversal of 82506664 is 46660528.

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, 20827 + ... + 24469.

It is an arithmetic number, because the mean of its divisors is an integer number (5124375).

Almost surely, 2^82506664 is an apocalyptic number.

It is an amenable number.

82506664 is a deficient number, since it is larger than the sum of its proper divisors (81473336).

82506664 is a wasteful number, since it uses less digits than its factorization.

82506664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817 (or 3813 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 82506664 is about 9083.3178960113. The cubic root of 82506664 is about 435.3411055967.

The spelling of 82506664 in words is "eighty-two million, five hundred six thousand, six hundred sixty-four".