82665158236804 has 72 divisors (see below), whose sum is σ = 171428825798720. Its totient is φ = 34646937589440.

The previous prime is 82665158236757. The next prime is 82665158236811. The reversal of 82665158236804 is 40863285156628.

82665158236804 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×82665158236804² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1365714 + ... + 12930409.

Almost surely, 2^{82665158236804} is an apocalyptic number.

It is an amenable number.

82665158236804 is an abundant number, since it is smaller than the sum of its proper divisors (88763667561916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82665158236804 is a wasteful number, since it uses less digits than its factorization.

82665158236804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14297081 (or 14297068 counting only the distinct ones).

The product of its (nonzero) digits is 132710400, while the sum is 64.

The spelling of 82665158236804 in words is "eighty-two trillion, six hundred sixty-five billion, one hundred fifty-eight million, two hundred thirty-six thousand, eight hundred four".