6497166579923 has 2 divisors, whose sum is σ = 6497166579924. Its totient is φ = 6497166579922.

The previous prime is 6497166579863. The next prime is 6497166579949. The reversal of 6497166579923 is 3299756617946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6497166579923 - 2⁸ = 6497166579667 is a prime.

It is not a weakly prime, because it can be changed into another prime (6497166579983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3248583289961 + 3248583289962.

It is an arithmetic number, because the mean of its divisors is an integer number (3248583289962).

Almost surely, 2^{6497166579923} is an apocalyptic number.

6497166579923 is a deficient number, since it is larger than the sum of its proper divisors (1).

6497166579923 is an equidigital number, since it uses as much as digits as its factorization.

6497166579923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 925888320, while the sum is 74.

The spelling of 6497166579923 in words is "six trillion, four hundred ninety-seven billion, one hundred sixty-six million, five hundred seventy-nine thousand, nine hundred twenty-three".