20455096320 has 480 divisors, whose sum is σ = 77259006000. Its totient is φ = 5133828096.

The previous prime is 20455096309. The next prime is 20455096357. The reversal of 20455096320 is 2369055402.

20455096320 is a `hidden beast` number, since 20 + 4 + 550 + 9 + 63 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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 23 ways as a sum of consecutive naturals, for example, 1203240952 + ... + 1203240968.

Almost surely, 2^20455096320 is an apocalyptic number.

20455096320 is a gapful number since it is divisible by the number (20) 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 20455096320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38629503000).

20455096320 is an abundant number, since it is smaller than the sum of its proper divisors (56803909680).

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

20455096320 is an frugal number, since it uses more digits than its factorization.

20455096320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 20455096320 in words is "twenty billion, four hundred fifty-five million, ninety-six thousand, three hundred twenty".