52664859795321 has 6 divisors (see below), whose sum is σ = 76071464148810. Its totient is φ = 35109906530208.

The previous prime is 52664859795319. The next prime is 52664859795367. The reversal of 52664859795321 is 12359795846625.

52664859795321 is a `hidden beast` number, since 5 + 2 + 6 + 6 + 4 + 8 + 597 + 9 + 5 + 3 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27615445401600 + 25049414393721 = 5255040^2 + 5004939^2 .

It is not a de Polignac number, because 52664859795321 - 2¹ = 52664859795319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52664859795321.

It is not an unprimeable number, because it can be changed into a prime (52664859795421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2925825544176 + ... + 2925825544193.

It is an arithmetic number, because the mean of its divisors is an integer number (12678577358135).

Almost surely, 2^{52664859795321} is an apocalyptic number.

It is an amenable number.

52664859795321 is a deficient number, since it is larger than the sum of its proper divisors (23406604353489).

52664859795321 is a wasteful number, since it uses less digits than its factorization.

52664859795321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851651088375 (or 5851651088372 counting only the distinct ones).

The product of its digits is 979776000, while the sum is 72.

The spelling of 52664859795321 in words is "fifty-two trillion, six hundred sixty-four billion, eight hundred fifty-nine million, seven hundred ninety-five thousand, three hundred twenty-one".