82664644004 has 24 divisors (see below), whose sum is σ = 145476508128. Its totient is φ = 41100272640.

The previous prime is 82664643899. The next prime is 82664644093. The reversal of 82664644004 is 40044646628.

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, 930659 + ... + 1015605.

It is an arithmetic number, because the mean of its divisors is an integer number (6061521172).

Almost surely, 2^82664644004 is an apocalyptic number.

It is an amenable number.

82664644004 is a deficient number, since it is larger than the sum of its proper divisors (62811864124).

82664644004 is a wasteful number, since it uses less digits than its factorization.

82664644004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86315 (or 86313 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 82664644004 in words is "eighty-two billion, six hundred sixty-four million, six hundred forty-four thousand, four".