52805665406016 has 70 divisors (see below), whose sum is σ = 156532534794350. Its totient is φ = 17601888466944.

The previous prime is 52805665406009. The next prime is 52805665406027. The reversal of 52805665406016 is 61060456650825.

52805665406016 is a `hidden beast` number, since 5 + 2 + 8 + 0 + 566 + 5 + 4 + 0 + 60 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51194025000000 + 1611640406016 = 7155000^2 + 1269504^2 .

It is a super-2 number, since 2×52805665406016² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5093133841 + ... + 5093144208.

Almost surely, 2^{52805665406016} is an apocalyptic number.

It is an amenable number.

52805665406016 is an abundant number, since it is smaller than the sum of its proper divisors (103726869388334).

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

52805665406016 is a wasteful number, since it uses less digits than its factorization.

52805665406016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10186278073 (or 10186278054 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 54.

The spelling of 52805665406016 in words is "fifty-two trillion, eight hundred five billion, six hundred sixty-five million, four hundred six thousand, sixteen".