52165366641 has 6 divisors (see below), whose sum is σ = 75349974050. Its totient is φ = 34776911088.

The previous prime is 52165366639. The next prime is 52165366651. The reversal of 52165366641 is 14666356125.

It can be written as a sum of positive squares in only one way, i.e., 46235750625 + 5929616016 = 215025^2 + 77004^2 .

It is not a de Polignac number, because 52165366641 - 2¹ = 52165366639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52165366651) 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, 2898075916 + ... + 2898075933.

Almost surely, 2^52165366641 is an apocalyptic number.

It is an amenable number.

52165366641 is a deficient number, since it is larger than the sum of its proper divisors (23184607409).

52165366641 is a wasteful number, since it uses less digits than its factorization.

52165366641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5796151855 (or 5796151852 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 52165366641 in words is "fifty-two billion, one hundred sixty-five million, three hundred sixty-six thousand, six hundred forty-one".