64126657163 has 2 divisors, whose sum is σ = 64126657164. Its totient is φ = 64126657162.

The previous prime is 64126657159. The next prime is 64126657183. The reversal of 64126657163 is 36175662146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64126657163 - 2² = 64126657159 is a prime.

It is a super-2 number, since 2×64126657163² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64126657183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32063328581 + 32063328582.

It is an arithmetic number, because the mean of its divisors is an integer number (32063328582).

Almost surely, 2^64126657163 is an apocalyptic number.

64126657163 is a deficient number, since it is larger than the sum of its proper divisors (1).

64126657163 is an equidigital number, since it uses as much as digits as its factorization.

64126657163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The spelling of 64126657163 in words is "sixty-four billion, one hundred twenty-six million, six hundred fifty-seven thousand, one hundred sixty-three".