6642257023 has 2 divisors, whose sum is σ = 6642257024. Its totient is φ = 6642257022.

The previous prime is 6642257003. The next prime is 6642257033. The reversal of 6642257023 is 3207522466.

6642257023 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6642257023 - 2⁵ = 6642256991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6642257003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3321128511 + 3321128512.

It is an arithmetic number, because the mean of its divisors is an integer number (3321128512).

Almost surely, 2^6642257023 is an apocalyptic number.

6642257023 is a deficient number, since it is larger than the sum of its proper divisors (1).

6642257023 is an equidigital number, since it uses as much as digits as its factorization.

6642257023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 6642257023 is about 81500.0430858782. The cubic root of 6642257023 is about 1879.7722131404.

Adding to 6642257023 its reverse (3207522466), we get a palindrome (9849779489).

The spelling of 6642257023 in words is "six billion, six hundred forty-two million, two hundred fifty-seven thousand, twenty-three".