82722388665 has 16 divisors (see below), whose sum is σ = 151263796608. Its totient is φ = 37815949056.

The previous prime is 82722388633. The next prime is 82722388687. The reversal of 82722388665 is 56688322728.

It is not a de Polignac number, because 82722388665 - 2⁵ = 82722388633 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393916032 + ... + 393916241.

It is an arithmetic number, because the mean of its divisors is an integer number (9453987288).

Almost surely, 2^82722388665 is an apocalyptic number.

It is an amenable number.

82722388665 is a deficient number, since it is larger than the sum of its proper divisors (68541407943).

82722388665 is a wasteful number, since it uses less digits than its factorization.

82722388665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787832288.

The product of its digits is 15482880, while the sum is 57.

The spelling of 82722388665 in words is "eighty-two billion, seven hundred twenty-two million, three hundred eighty-eight thousand, six hundred sixty-five".