53665920000 has 1320 divisors, whose sum is σ = 243412732992. Its totient is φ = 11151360000.

The previous prime is 53665919981. The next prime is 53665920017. The reversal of 53665920000 is 2956635.

53665920000 is a `hidden beast` number, since 5 + 3 + 66 + 592 + 0 + 0 + 0 + 0 = 666.

53665920000 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 (1320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4878719995 + ... + 4878720005.

Almost surely, 2^53665920000 is an apocalyptic number.

53665920000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53665920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121706366496).

53665920000 is an abundant number, since it is smaller than the sum of its proper divisors (189746812992).

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

53665920000 is an equidigital number, since it uses as much as digits as its factorization.

53665920000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The spelling of 53665920000 in words is "fifty-three billion, six hundred sixty-five million, nine hundred twenty thousand".