53165425664 has 176 divisors, whose sum is σ = 118176421440. Its totient is φ = 23750737920.

The previous prime is 53165425619. The next prime is 53165425697. The reversal of 53165425664 is 46652456135.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74986142 + ... + 74986850.

It is an arithmetic number, because the mean of its divisors is an integer number (671456940).

Almost surely, 2^53165425664 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 53165425664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59088210720).

53165425664 is an abundant number, since it is smaller than the sum of its proper divisors (65010995776).

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

53165425664 is a wasteful number, since it uses less digits than its factorization.

53165425664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 898 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 47.

The spelling of 53165425664 in words is "fifty-three billion, one hundred sixty-five million, four hundred twenty-five thousand, six hundred sixty-four".