2560011660 has 72 divisors (see below), whose sum is σ = 7769545056. Its totient is φ = 682302720.

The previous prime is 2560011653. The next prime is 2560011667. The reversal of 2560011660 is 661100652.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2560011653) and next prime (2560011667).

It is not an unprimeable number, because it can be changed into a prime (2560011667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 572152 + ... + 576608.

It is an arithmetic number, because the mean of its divisors is an integer number (107910348).

Almost surely, 2^2560011660 is an apocalyptic number.

2560011660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2560011660 is an abundant number, since it is smaller than the sum of its proper divisors (5209533396).

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

2560011660 is a wasteful number, since it uses less digits than its factorization.

2560011660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7663 (or 7658 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2560011660 is about 50596.5577880551. The cubic root of 2560011660 is about 1367.9828342465.

The spelling of 2560011660 in words is "two billion, five hundred sixty million, eleven thousand, six hundred sixty".