20654568000 has 448 divisors, whose sum is σ = 82677853440. Its totient is φ = 5006592000.

The previous prime is 20654567987. The next prime is 20654568071. The reversal of 20654568000 is 86545602.

It is a super-2 number, since 2×20654568000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2371654 + ... + 2380346.

It is an arithmetic number, because the mean of its divisors is an integer number (184548780).

Almost surely, 2^20654568000 is an apocalyptic number.

20654568000 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 20654568000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41338926720).

20654568000 is an abundant number, since it is smaller than the sum of its proper divisors (62023285440).

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

20654568000 is a wasteful number, since it uses less digits than its factorization.

20654568000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8740 (or 8714 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 20654568000 in words is "twenty billion, six hundred fifty-four million, five hundred sixty-eight thousand".