82207784966 has 16 divisors (see below), whose sum is σ = 128390095008. Its totient is φ = 39443956800.

The previous prime is 82207784959. The next prime is 82207784977. The reversal of 82207784966 is 66948770228.

82207784966 = 143358² + 143359² + ... + 143361².

It is a Curzon number.

It is a congruent 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, 8212490 + ... + 8222493.

It is an arithmetic number, because the mean of its divisors is an integer number (8024380938).

Almost surely, 2^82207784966 is an apocalyptic number.

82207784966 is a deficient number, since it is larger than the sum of its proper divisors (46182310042).

82207784966 is a wasteful number, since it uses less digits than its factorization.

82207784966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16435087.

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 82207784966 in words is "eighty-two billion, two hundred seven million, seven hundred eighty-four thousand, nine hundred sixty-six".