2560661433 has 24 divisors (see below), whose sum is σ = 4039416576. Its totient is φ = 1550210400.

The previous prime is 2560661423. The next prime is 2560661471. The reversal of 2560661433 is 3341660652.

2560661433 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 6 + 614 + 33 = 666.

It is not a de Polignac number, because 2560661433 - 2⁸ = 2560661177 is a prime.

It is a super-2 number, since 2×2560661433² = 13113973948907226978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2560661423) 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, 79416 + ... + 106902.

It is an arithmetic number, because the mean of its divisors is an integer number (168309024).

Almost surely, 2^2560661433 is an apocalyptic number.

It is an amenable number.

2560661433 is a deficient number, since it is larger than the sum of its proper divisors (1478755143).

2560661433 is a wasteful number, since it uses less digits than its factorization.

2560661433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28445 (or 28442 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 2560661433 is about 50602.9784992939. The cubic root of 2560661433 is about 1368.0985632919.

The spelling of 2560661433 in words is "two billion, five hundred sixty million, six hundred sixty-one thousand, four hundred thirty-three".