20106564004 has 12 divisors (see below), whose sum is σ = 35191242828. Its totient is φ = 10051923200.

The previous prime is 20106564001. The next prime is 20106564011. The reversal of 20106564004 is 40046560102.

It can be written as a sum of positive squares in 2 ways, for example, as 15850306404 + 4256257600 = 125898^2 + 65240^2 .

It is not an unprimeable number, because it can be changed into a prime (20106564001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306037 + ... + 365884.

It is an arithmetic number, because the mean of its divisors is an integer number (2932603569).

Almost surely, 2^20106564004 is an apocalyptic number.

It is an amenable number.

20106564004 is a deficient number, since it is larger than the sum of its proper divisors (15084678824).

20106564004 is a wasteful number, since it uses less digits than its factorization.

20106564004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679406 (or 679404 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 20106564004 in words is "twenty billion, one hundred six million, five hundred sixty-four thousand, four".