76564351122020 has 24 divisors (see below), whose sum is σ = 160785919292544. Its totient is φ = 30625591508576.

The previous prime is 76564351122001. The next prime is 76564351122041. The reversal of 76564351122020 is 2022115346567.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5045852 + ... + 13363731.

It is an arithmetic number, because the mean of its divisors is an integer number (6699413303856).

Almost surely, 2^{76564351122020} is an apocalyptic number.

It is an amenable number.

76564351122020 is an abundant number, since it is smaller than the sum of its proper divisors (84221568170524).

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

76564351122020 is a wasteful number, since it uses less digits than its factorization.

76564351122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18617539 (or 18617537 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

Adding to 76564351122020 its reverse (2022115346567), we get a palindrome (78586466468587).

The spelling of 76564351122020 in words is "seventy-six trillion, five hundred sixty-four billion, three hundred fifty-one million, one hundred twenty-two thousand, twenty".