52161631662 has 16 divisors (see below), whose sum is σ = 119226586752. Its totient is φ = 14903323320.

The previous prime is 52161631591. The next prime is 52161631681. The reversal of 52161631662 is 26613616125.

It is a self number, because there is not a number n which added to its sum of digits gives 52161631662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620971764 + ... + 620971847.

It is an arithmetic number, because the mean of its divisors is an integer number (7451661672).

Almost surely, 2^52161631662 is an apocalyptic number.

52161631662 is an abundant number, since it is smaller than the sum of its proper divisors (67064955090).

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

52161631662 is a wasteful number, since it uses less digits than its factorization.

52161631662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241943623.

The product of its digits is 77760, while the sum is 39.

The spelling of 52161631662 in words is "fifty-two billion, one hundred sixty-one million, six hundred thirty-one thousand, six hundred sixty-two".