20263825564 has 12 divisors (see below), whose sum is σ = 35487759888. Its totient is φ = 10124465600.

The previous prime is 20263825541. The next prime is 20263825573. The reversal of 20263825564 is 46552836202.

It is a self number, because there is not a number n which added to its sum of digits gives 20263825564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855672 + ... + 1866559.

It is an arithmetic number, because the mean of its divisors is an integer number (2957313324).

Almost surely, 2^20263825564 is an apocalyptic number.

It is an amenable number.

20263825564 is a deficient number, since it is larger than the sum of its proper divisors (15223934324).

20263825564 is a wasteful number, since it uses less digits than its factorization.

20263825564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723596 (or 3723594 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 20263825564 in words is "twenty billion, two hundred sixty-three million, eight hundred twenty-five thousand, five hundred sixty-four".