53350665656320 has 288 divisors, whose sum is σ = 136834775204400. Its totient is φ = 19939630448640.

The previous prime is 53350665656303. The next prime is 53350665656347. The reversal of 53350665656320 is 2365656605335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285285087 + ... + 285472033.

Almost surely, 2^{53350665656320} 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 53350665656320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68417387602200).

53350665656320 is an abundant number, since it is smaller than the sum of its proper divisors (83484109548080).

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

53350665656320 is a wasteful number, since it uses less digits than its factorization.

53350665656320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187065 (or 187014 counting only the distinct ones).

The product of its (nonzero) digits is 43740000, while the sum is 55.

The spelling of 53350665656320 in words is "fifty-three trillion, three hundred fifty billion, six hundred sixty-five million, six hundred fifty-six thousand, three hundred twenty".