20795624054568 has 144 divisors (see below), whose sum is σ = 61926339302100. Its totient is φ = 6299744140800.

The previous prime is 20795624054561. The next prime is 20795624054581. The reversal of 20795624054568 is 86545042659702.

20795624054568 is a `hidden beast` number, since 2 + 0 + 7 + 9 + 5 + 6 + 24 + 0 + 545 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20599089658884 + 196534395684 = 4538622^2 + 443322^2 .

It is not an unprimeable number, because it can be changed into a prime (20795624054561) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27761428 + ... + 28500668.

Almost surely, 2^{20795624054568} 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 20795624054568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30963169651050).

20795624054568 is an abundant number, since it is smaller than the sum of its proper divisors (41130715247532).

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

20795624054568 is a wasteful number, since it uses less digits than its factorization.

20795624054568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742504 (or 742486 counting only the distinct ones).

The product of its (nonzero) digits is 145152000, while the sum is 63.

The spelling of 20795624054568 in words is "twenty trillion, seven hundred ninety-five billion, six hundred twenty-four million, fifty-four thousand, five hundred sixty-eight".