2565665060 has 48 divisors (see below), whose sum is σ = 6173556480. Its totient is φ = 877376640.

The previous prime is 2565665051. The next prime is 2565665083. The reversal of 2565665060 is 605665652.

It is a junction number, because it is equal to n+sod(n) for n = 2565664999 and 2565665017.

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, 30905 + ... + 78015.

It is an arithmetic number, because the mean of its divisors is an integer number (128615760).

Almost surely, 2^2565665060 is an apocalyptic number.

2565665060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2565665060 is an abundant number, since it is smaller than the sum of its proper divisors (3607891420).

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

2565665060 is a wasteful number, since it uses less digits than its factorization.

2565665060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47516 (or 47514 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 2565665060 is about 50652.3944152693. The cubic root of 2565665060 is about 1368.9890885417.

The spelling of 2565665060 in words is "two billion, five hundred sixty-five million, six hundred sixty-five thousand, sixty".