52165846638 has 48 divisors (see below), whose sum is σ = 124107001200. Its totient is φ = 16365753216.

The previous prime is 52165846637. The next prime is 52165846651. The reversal of 52165846638 is 83664856125.

52165846638 is a `hidden beast` number, since 5 + 21 + 6 + 584 + 6 + 6 + 38 = 666.

52165846638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52165846637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3148713 + ... + 3165236.

It is an arithmetic number, because the mean of its divisors is an integer number (2585562525).

Almost surely, 2^52165846638 is an apocalyptic number.

52165846638 is an abundant number, since it is smaller than the sum of its proper divisors (71941154562).

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

52165846638 is a wasteful number, since it uses less digits than its factorization.

52165846638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313983 (or 6313971 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 52165846638 in words is "fifty-two billion, one hundred sixty-five million, eight hundred forty-six thousand, six hundred thirty-eight".