20960723808 has 240 divisors, whose sum is σ = 63093192624. Its totient is φ = 6824632320.

The previous prime is 20960723807. The next prime is 20960723827. The reversal of 20960723808 is 80832706902.

20960723808 is a `hidden beast` number, since 2 + 0 + 9 + 607 + 2 + 38 + 0 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20960723807) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23791528 + ... + 23792408.

Almost surely, 2^20960723808 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 20960723808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31546596312).

20960723808 is an abundant number, since it is smaller than the sum of its proper divisors (42132468816).

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

20960723808 is a wasteful number, since it uses less digits than its factorization.

20960723808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 20960723808 in words is "twenty billion, nine hundred sixty million, seven hundred twenty-three thousand, eight hundred eight".