20608683552 has 60 divisors (see below), whose sum is σ = 60609573486. Its totient is φ = 6869560320.

The previous prime is 20608683527. The next prime is 20608683581. The reversal of 20608683552 is 25538680602.

20608683552 is a `hidden beast` number, since 2 + 0 + 608 + 6 + 8 + 35 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11362707216 + 9245976336 = 106596^2 + 96156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20608683498 and 20608683507.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3972849 + ... + 3978032.

Almost surely, 2^20608683552 is an apocalyptic number.

It is an amenable number.

20608683552 is an abundant number, since it is smaller than the sum of its proper divisors (40000889934).

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

20608683552 is an equidigital number, since it uses as much as digits as its factorization.

20608683552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950903 (or 7950886 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 20608683552 in words is "twenty billion, six hundred eight million, six hundred eighty-three thousand, five hundred fifty-two".