4255623656671 has 2 divisors, whose sum is σ = 4255623656672. Its totient is φ = 4255623656670.

The previous prime is 4255623656633. The next prime is 4255623656717. The reversal of 4255623656671 is 1766563265524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4255623656671 - 2¹⁵ = 4255623623903 is a prime.

It is a super-2 number, since 2×4255623656671² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4255623656611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2127811828335 + 2127811828336.

It is an arithmetic number, because the mean of its divisors is an integer number (2127811828336).

Almost surely, 2^{4255623656671} is an apocalyptic number.

4255623656671 is a deficient number, since it is larger than the sum of its proper divisors (1).

4255623656671 is an equidigital number, since it uses as much as digits as its factorization.

4255623656671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432000, while the sum is 58.

The spelling of 4255623656671 in words is "four trillion, two hundred fifty-five billion, six hundred twenty-three million, six hundred fifty-six thousand, six hundred seventy-one".