52057216722168 has 160 divisors (see below), whose sum is σ = 166977572952960. Its totient is φ = 14843197615680.

The previous prime is 52057216722157. The next prime is 52057216722179. The reversal of 52057216722168 is 86122761275025.

It is a happy number.

52057216722168 is a `hidden beast` number, since 5 + 2 + 0 + 572 + 1 + 6 + 7 + 2 + 2 + 1 + 68 = 666.

52057216722168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52057216722157) and next prime (52057216722179).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9459646 + ... + 13913997.

It is an arithmetic number, because the mean of its divisors is an integer number (1043609830956).

Almost surely, 2^{52057216722168} is an apocalyptic number.

It is an amenable number.

52057216722168 is an abundant number, since it is smaller than the sum of its proper divisors (114920356230792).

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

52057216722168 is a wasteful number, since it uses less digits than its factorization.

52057216722168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23374159 (or 23374146 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 52057216722168 in words is "fifty-two trillion, fifty-seven billion, two hundred sixteen million, seven hundred twenty-two thousand, one hundred sixty-eight".