2656051663 has 2 divisors, whose sum is σ = 2656051664. Its totient is φ = 2656051662.

The previous prime is 2656051633. The next prime is 2656051679. The reversal of 2656051663 is 3661506562.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2656051663 - 2⁵ = 2656051631 is a prime.

It is a super-2 number, since 2×2656051663² = 14109220873050131138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656051603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328025831 + 1328025832.

It is an arithmetic number, because the mean of its divisors is an integer number (1328025832).

Almost surely, 2^2656051663 is an apocalyptic number.

2656051663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656051663 is an equidigital number, since it uses as much as digits as its factorization.

2656051663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 2656051663 is about 51536.8961327707. The cubic root of 2656051663 is about 1384.8800937087.

The spelling of 2656051663 in words is "two billion, six hundred fifty-six million, fifty-one thousand, six hundred sixty-three".