2656005511 has 2 divisors, whose sum is σ = 2656005512. Its totient is φ = 2656005510.

The previous prime is 2656005503. The next prime is 2656005529. The reversal of 2656005511 is 1155006562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2656005511 - 2³ = 2656005503 is a prime.

It is a super-2 number, since 2×2656005511² = 14108730548924742242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656000511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328002755 + 1328002756.

It is an arithmetic number, because the mean of its divisors is an integer number (1328002756).

Almost surely, 2^2656005511 is an apocalyptic number.

2656005511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656005511 is an equidigital number, since it uses as much as digits as its factorization.

2656005511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 2656005511 is about 51536.4483739421. The cubic root of 2656005511 is about 1384.8720723592.

The spelling of 2656005511 in words is "two billion, six hundred fifty-six million, five thousand, five hundred eleven".