20546023564 has 48 divisors (see below), whose sum is σ = 39526502400. Its totient is φ = 9267379200.

The previous prime is 20546023507. The next prime is 20546023567. The reversal of 20546023564 is 46532064502.

It is not an unprimeable number, because it can be changed into a prime (20546023567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3686572 + ... + 3692140.

It is an arithmetic number, because the mean of its divisors is an integer number (823468800).

Almost surely, 2^20546023564 is an apocalyptic number.

It is an amenable number.

20546023564 is a deficient number, since it is larger than the sum of its proper divisors (18980478836).

20546023564 is a wasteful number, since it uses less digits than its factorization.

20546023564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6214 (or 6212 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 20546023564 in words is "twenty billion, five hundred forty-six million, twenty-three thousand, five hundred sixty-four".