20775360000 has 800 divisors, whose sum is σ = 78234456960. Its totient is φ = 4866048000.

The previous prime is 20775359989. The next prime is 20775360037. The reversal of 20775360000 is 6357702.

It is a tau number, because it is divible by the number of its divisors (800).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 20775360000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 310079967 + ... + 310080033.

Almost surely, 2^20775360000 is an apocalyptic number.

20775360000 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 20775360000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39117228480).

20775360000 is an abundant number, since it is smaller than the sum of its proper divisors (57459096960).

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

20775360000 is an equidigital number, since it uses as much as digits as its factorization.

20775360000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The spelling of 20775360000 in words is "twenty billion, seven hundred seventy-five million, three hundred sixty thousand".