53909037168 has 120 divisors (see below), whose sum is σ = 162116623872. Its totient is φ = 15391700352.

The previous prime is 53909037167. The next prime is 53909037187. The reversal of 53909037168 is 86173090935.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 53909037168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53909037167) 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, 3678271 + ... + 3692897.

Almost surely, 2^53909037168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53909037168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81058311936).

53909037168 is an abundant number, since it is smaller than the sum of its proper divisors (108207586704).

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

53909037168 is a wasteful number, since it uses less digits than its factorization.

53909037168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16219 (or 16206 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 53909037168 in words is "fifty-three billion, nine hundred nine million, thirty-seven thousand, one hundred sixty-eight".