53661416320 has 32 divisors (see below), whose sum is σ = 128284324920. Its totient is φ = 21464566272.

The previous prime is 53661416293. The next prime is 53661416321. The reversal of 53661416320 is 2361416635.

53661416320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 53661416320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53661416321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41922342 + ... + 41923621.

Almost surely, 2^53661416320 is an apocalyptic number.

It is an amenable number.

53661416320 is an abundant number, since it is smaller than the sum of its proper divisors (74622908600).

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

53661416320 is an equidigital number, since it uses as much as digits as its factorization.

53661416320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83845982 (or 83845970 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 53661416320 in words is "fifty-three billion, six hundred sixty-one million, four hundred sixteen thousand, three hundred twenty".