53605386720 has 72 divisors (see below), whose sum is σ = 182928387096. Its totient is φ = 14294769408.

The previous prime is 53605386707. The next prime is 53605386773. The reversal of 53605386720 is 2768350635.

53605386720 is a `hidden beast` number, since 5 + 3 + 605 + 38 + 6 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18611542 + ... + 18614421.

It is an arithmetic number, because the mean of its divisors is an integer number (2540672043).

Almost surely, 2^53605386720 is an apocalyptic number.

It is an amenable number.

53605386720 is an abundant number, since it is smaller than the sum of its proper divisors (129323000376).

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

53605386720 is a wasteful number, since it uses less digits than its factorization.

53605386720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37225984 (or 37225973 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 53605386720 in words is "fifty-three billion, six hundred five million, three hundred eighty-six thousand, seven hundred twenty".