2656465385 has 16 divisors (see below), whose sum is σ = 3801551616. Its totient is φ = 1742376768.

The previous prime is 2656465369. The next prime is 2656465421. The reversal of 2656465385 is 5835646562.

It is a cyclic number.

It is not a de Polignac number, because 2656465385 - 2⁴ = 2656465369 is a prime.

It is a Duffinian number.

It is a Curzon 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, 1649174 + ... + 1650783.

It is an arithmetic number, because the mean of its divisors is an integer number (237596976).

Almost surely, 2^2656465385 is an apocalyptic number.

It is an amenable number.

2656465385 is a deficient number, since it is larger than the sum of its proper divisors (1145086231).

2656465385 is a wasteful number, since it uses less digits than its factorization.

2656465385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299992.

The product of its digits is 5184000, while the sum is 50.

The square root of 2656465385 is about 51540.9098192882. The cubic root of 2656465385 is about 1384.9519956253.

The spelling of 2656465385 in words is "two billion, six hundred fifty-six million, four hundred sixty-five thousand, three hundred eighty-five".