82057642123816 has 64 divisors (see below), whose sum is σ = 158676182496000. Its totient is φ = 39766982841600.

The previous prime is 82057642123781. The next prime is 82057642123931. The reversal of 82057642123816 is 61832124675028.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7792570 + ... + 14994646.

It is an arithmetic number, because the mean of its divisors is an integer number (2479315351500).

Almost surely, 2^{82057642123816} is an apocalyptic number.

It is an amenable number.

82057642123816 is a deficient number, since it is larger than the sum of its proper divisors (76618540372184).

82057642123816 is a wasteful number, since it uses less digits than its factorization.

82057642123816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7202482 (or 7202478 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 82057642123816 in words is "eighty-two trillion, fifty-seven billion, six hundred forty-two million, one hundred twenty-three thousand, eight hundred sixteen".