2566235465 has 16 divisors (see below), whose sum is σ = 3219222528. Its totient is φ = 1960153536.

The previous prime is 2566235453. The next prime is 2566235479. The reversal of 2566235465 is 5645326652.

2566235465 = T₆₆₂₃ + T₆₆₂₄ + ... + T₆₇₃₇.

2566235465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2566235465 - 2⁴ = 2566235449 is a prime.

It is a Duffinian number.

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, 44024 + ... + 84086.

It is an arithmetic number, because the mean of its divisors is an integer number (201201408).

Almost surely, 2^2566235465 is an apocalyptic number.

It is an amenable number.

2566235465 is a deficient number, since it is larger than the sum of its proper divisors (652987063).

2566235465 is a wasteful number, since it uses less digits than its factorization.

2566235465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40648.

The product of its digits is 1296000, while the sum is 44.

The square root of 2566235465 is about 50658.0246851375. The cubic root of 2566235465 is about 1369.0905333706.

The spelling of 2566235465 in words is "two billion, five hundred sixty-six million, two hundred thirty-five thousand, four hundred sixty-five".