2566165316 has 24 divisors (see below), whose sum is σ = 5275893504. Its totient is φ = 1076712480.

The previous prime is 2566165307. The next prime is 2566165321. The reversal of 2566165316 is 6135616652.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2242580 + ... + 2243723.

It is an arithmetic number, because the mean of its divisors is an integer number (219828896).

Almost surely, 2^2566165316 is an apocalyptic number.

2566165316 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2566165316 is an abundant number, since it is smaller than the sum of its proper divisors (2709728188).

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

2566165316 is a wasteful number, since it uses less digits than its factorization.

2566165316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486331 (or 4486329 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 2566165316 is about 50657.3323024417. The cubic root of 2566165316 is about 1369.0780583908.

The spelling of 2566165316 in words is "two billion, five hundred sixty-six million, one hundred sixty-five thousand, three hundred sixteen".