2566540992 has 28 divisors (see below), whose sum is σ = 6790640216. Its totient is φ = 855513600.

The previous prime is 2566540973. The next prime is 2566541027. The reversal of 2566540992 is 2990456652.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6683509 + ... + 6683892.

Almost surely, 2^2566540992 is an apocalyptic number.

It is an amenable number.

2566540992 is an abundant number, since it is smaller than the sum of its proper divisors (4224099224).

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

2566540992 is a wasteful number, since it uses less digits than its factorization.

2566540992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13367416 (or 13367406 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The square root of 2566540992 is about 50661.0401788199. The cubic root of 2566540992 is about 1369.1448642546.

The spelling of 2566540992 in words is "two billion, five hundred sixty-six million, five hundred forty thousand, nine hundred ninety-two".