82784696666 has 16 divisors (see below), whose sum is σ = 146494579200. Its totient is φ = 34334666640.

The previous prime is 82784696641. The next prime is 82784696671. The reversal of 82784696666 is 66669648728.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 82784696596 and 82784696605.

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, 95373641 + ... + 95374508.

It is an arithmetic number, because the mean of its divisors is an integer number (9155911200).

Almost surely, 2^82784696666 is an apocalyptic number.

82784696666 is a deficient number, since it is larger than the sum of its proper divisors (63709882534).

82784696666 is a wasteful number, since it uses less digits than its factorization.

82784696666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190748189.

The product of its digits is 250822656, while the sum is 68.

The spelling of 82784696666 in words is "eighty-two billion, seven hundred eighty-four million, six hundred ninety-six thousand, six hundred sixty-six".