2566102561 has 8 divisors (see below), whose sum is σ = 2799762048. Its totient is φ = 2332506000.

The previous prime is 2566102549. The next prime is 2566102573. The reversal of 2566102561 is 1652016652.

2566102561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2566102549) and next prime (2566102573).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2566102561 - 2³¹ = 418618913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2566102061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122056 + ... + 141526.

It is an arithmetic number, because the mean of its divisors is an integer number (349970256).

Almost surely, 2^2566102561 is an apocalyptic number.

It is an amenable number.

2566102561 is a deficient number, since it is larger than the sum of its proper divisors (233659487).

2566102561 is a wasteful number, since it uses less digits than its factorization.

2566102561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31463.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 2566102561 is about 50656.7128917777. The cubic root of 2566102561 is about 1369.0668981337.

The spelling of 2566102561 in words is "two billion, five hundred sixty-six million, one hundred two thousand, five hundred sixty-one".