2566135044 has 36 divisors (see below), whose sum is σ = 7076312880. Its totient is φ = 777616560.

The previous prime is 2566135031. The next prime is 2566135051. The reversal of 2566135044 is 4405316652.

2566135044 is a `hidden beast` number, since 2 + 566 + 1 + 3 + 50 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3239674 + ... + 3240465.

Almost surely, 2^2566135044 is an apocalyptic number.

It is an amenable number.

2566135044 is an abundant number, since it is smaller than the sum of its proper divisors (4510177836).

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

2566135044 is a wasteful number, since it uses less digits than its factorization.

2566135044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480160 (or 6480155 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2566135044 is about 50657.0335096717. The cubic root of 2566135044 is about 1369.0726748854.

The spelling of 2566135044 in words is "two billion, five hundred sixty-six million, one hundred thirty-five thousand, forty-four".