20003244564 has 24 divisors (see below), whose sum is σ = 46677463840. Its totient is φ = 6667287264.

The previous prime is 20003244529. The next prime is 20003244571. The reversal of 20003244564 is 46544230002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154422 + ... + 252690.

Almost surely, 2^20003244564 is an apocalyptic number.

It is an amenable number.

20003244564 is an abundant number, since it is smaller than the sum of its proper divisors (26674219276).

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

20003244564 is a wasteful number, since it uses less digits than its factorization.

20003244564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115239 (or 115237 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20003244564 its reverse (46544230002), we get a palindrome (66547474566).

The spelling of 20003244564 in words is "twenty billion, three million, two hundred forty-four thousand, five hundred sixty-four".