20594364564 has 24 divisors (see below), whose sum is σ = 48321977760. Its totient is φ = 6826436704.

The previous prime is 20594364521. The next prime is 20594364569. The reversal of 20594364564 is 46546349502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20594364569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4791699 + ... + 4795994.

It is an arithmetic number, because the mean of its divisors is an integer number (2013415740).

Almost surely, 2^20594364564 is an apocalyptic number.

It is an amenable number.

20594364564 is an abundant number, since it is smaller than the sum of its proper divisors (27727613196).

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

20594364564 is a wasteful number, since it uses less digits than its factorization.

20594364564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587879 (or 9587877 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 20594364564 in words is "twenty billion, five hundred ninety-four million, three hundred sixty-four thousand, five hundred sixty-four".