53657660416 has 44 divisors (see below), whose sum is σ = 108773813520. Its totient is φ = 26450923520.

The previous prime is 53657660387. The next prime is 53657660431. The reversal of 53657660416 is 61406675635.

53657660416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53657660416.

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, 296311 + ... + 441718.

Almost surely, 2^53657660416 is an apocalyptic number.

It is an amenable number.

53657660416 is an abundant number, since it is smaller than the sum of its proper divisors (55116153104).

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

53657660416 is an equidigital number, since it uses as much as digits as its factorization.

53657660416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738120 (or 738102 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 53657660416 in words is "fifty-three billion, six hundred fifty-seven million, six hundred sixty thousand, four hundred sixteen".