20456448260 has 48 divisors (see below), whose sum is σ = 45058374144. Its totient is φ = 7792023168.

The previous prime is 20456448227. The next prime is 20456448263. The reversal of 20456448260 is 6284465402.

It is not an unprimeable number, because it can be changed into a prime (20456448263) 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, 259304 + ... + 328863.

It is an arithmetic number, because the mean of its divisors is an integer number (938716128).

Almost surely, 2^20456448260 is an apocalyptic number.

20456448260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20456448260 is an abundant number, since it is smaller than the sum of its proper divisors (24601925884).

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

20456448260 is a wasteful number, since it uses less digits than its factorization.

20456448260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588260 (or 588258 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 20456448260 in words is "twenty billion, four hundred fifty-six million, four hundred forty-eight thousand, two hundred sixty".