2566408812 has 48 divisors (see below), whose sum is σ = 6876508800. Its totient is φ = 736767360.

The previous prime is 2566408787. The next prime is 2566408829. The reversal of 2566408812 is 2188046652.

It is a super-2 number, since 2×2566408812² = 13172908380622502688, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 509137 + ... + 514152.

It is an arithmetic number, because the mean of its divisors is an integer number (143260600).

Almost surely, 2^2566408812 is an apocalyptic number.

2566408812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2566408812 is an abundant number, since it is smaller than the sum of its proper divisors (4310099988).

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

2566408812 is a wasteful number, since it uses less digits than its factorization.

2566408812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023326 (or 1023324 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 2566408812 is about 50659.7356092588. The cubic root of 2566408812 is about 1369.1213596394.

The spelling of 2566408812 in words is "two billion, five hundred sixty-six million, four hundred eight thousand, eight hundred twelve".