20722060800 has 540 divisors, whose sum is σ = 86289550776. Its totient is φ = 4735180800.

The previous prime is 20722060769. The next prime is 20722060811. The reversal of 20722060800 is 806022702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 5642965 + ... + 5646635.

Almost surely, 2^20722060800 is an apocalyptic number.

20722060800 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 20722060800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43144775388).

20722060800 is an abundant number, since it is smaller than the sum of its proper divisors (65567489976).

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

20722060800 is a wasteful number, since it uses less digits than its factorization.

20722060800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719 (or 3688 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The spelling of 20722060800 in words is "twenty billion, seven hundred twenty-two million, sixty thousand, eight hundred".