52160621768 has 16 divisors (see below), whose sum is σ = 97803735180. Its totient is φ = 26079625728.

The previous prime is 52160621719. The next prime is 52160621791. The reversal of 52160621768 is 86712606125.

It is a Cunningham number, because it is equal to 228387²-1.

It can be written as a sum of positive squares in 2 ways, for example, as 51491778724 + 668843044 = 226918^2 + 25862^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399680 + ... + 513872.

Almost surely, 2^52160621768 is an apocalyptic number.

It is an amenable number.

52160621768 is a deficient number, since it is larger than the sum of its proper divisors (45643113412).

52160621768 is a wasteful number, since it uses less digits than its factorization.

52160621768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171296 (or 171292 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 52160621768 in words is "fifty-two billion, one hundred sixty million, six hundred twenty-one thousand, seven hundred sixty-eight".