20463134560 has 48 divisors (see below), whose sum is σ = 52739083152. Its totient is φ = 7441139200.

The previous prime is 20463134557. The next prime is 20463134561. The reversal of 20463134560 is 6543136402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20463134561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5811631 + ... + 5815150.

It is an arithmetic number, because the mean of its divisors is an integer number (1098730899).

Almost surely, 2^20463134560 is an apocalyptic number.

20463134560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20463134560 is an abundant number, since it is smaller than the sum of its proper divisors (32275948592).

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

20463134560 is a wasteful number, since it uses less digits than its factorization.

20463134560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11626807 (or 11626799 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 20463134560 in words is "twenty billion, four hundred sixty-three million, one hundred thirty-four thousand, five hundred sixty".