2656006655 has 4 divisors (see below), whose sum is σ = 3187207992. Its totient is φ = 2124805320.

The previous prime is 2656006603. The next prime is 2656006657. The reversal of 2656006655 is 5566006562.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2656006655 - 2²⁶ = 2588897791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656006657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265600661 + ... + 265600670.

It is an arithmetic number, because the mean of its divisors is an integer number (796801998).

Almost surely, 2^2656006655 is an apocalyptic number.

2656006655 is a deficient number, since it is larger than the sum of its proper divisors (531201337).

2656006655 is an equidigital number, since it uses as much as digits as its factorization.

2656006655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531201336.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 2656006655 is about 51536.4594728819. The cubic root of 2656006655 is about 1384.8722711908.

The spelling of 2656006655 in words is "two billion, six hundred fifty-six million, six thousand, six hundred fifty-five".