53099665920 has 960 divisors, whose sum is σ = 225854044416. Its totient is φ = 11253841920.

The previous prime is 53099665837. The next prime is 53099665933. The reversal of 53099665920 is 2956699035.

It is a tau number, because it is divible by the number of its divisors (960).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 293368230 + ... + 293368410.

Almost surely, 2^53099665920 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 53099665920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112927022208).

53099665920 is an abundant number, since it is smaller than the sum of its proper divisors (172754378496).

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

53099665920 is a wasteful number, since it uses less digits than its factorization.

53099665920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 3936600, while the sum is 54.

The spelling of 53099665920 in words is "fifty-three billion, ninety-nine million, six hundred sixty-five thousand, nine hundred twenty".