2548665660 has 48 divisors (see below), whose sum is σ = 7138454400. Its totient is φ = 679435584.

The previous prime is 2548665641. The next prime is 2548665727. The reversal of 2548665660 is 665668452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379411 + ... + 386069.

It is an arithmetic number, because the mean of its divisors is an integer number (148717800).

Almost surely, 2^2548665660 is an apocalyptic number.

2548665660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2548665660 is an abundant number, since it is smaller than the sum of its proper divisors (4589788740).

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

2548665660 is a wasteful number, since it uses less digits than its factorization.

2548665660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13050 (or 13048 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The square root of 2548665660 is about 50484.3110282789. The cubic root of 2548665660 is about 1365.9588695317.

The spelling of 2548665660 in words is "two billion, five hundred forty-eight million, six hundred sixty-five thousand, six hundred sixty".