116564045525021 has 4 divisors (see below), whose sum is σ = 116564162902044. Its totient is φ = 116563928148000.

The previous prime is 116564045525009. The next prime is 116564045525107. The reversal of 116564045525021 is 120525540465611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12750077025625 + 103813968499396 = 3570725^2 + 10188914^2 .

It is a cyclic number.

It is not a de Polignac number, because 116564045525021 - 2¹⁸ = 116564045262877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116564044525021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57186080 + ... + 59189321.

It is an arithmetic number, because the mean of its divisors is an integer number (29141040725511).

Almost surely, 2^{116564045525021} is an apocalyptic number.

It is an amenable number.

116564045525021 is a deficient number, since it is larger than the sum of its proper divisors (117377023).

116564045525021 is a wasteful number, since it uses less digits than its factorization.

116564045525021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117377022.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 116564045525021 in words is "one hundred sixteen trillion, five hundred sixty-four billion, forty-five million, five hundred twenty-five thousand, twenty-one".