126264266065 has 16 divisors (see below), whose sum is σ = 173198631168. Its totient is φ = 86563106496.

The previous prime is 126264266059. The next prime is 126264266081. The reversal of 126264266065 is 560662462621.

It is a cyclic number.

It is not a de Polignac number, because 126264266065 - 2³ = 126264266057 is a prime.

It is a super-2 number, since 2×126264266065² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206317 + ... + 543226.

It is an arithmetic number, because the mean of its divisors is an integer number (10824914448).

Almost surely, 2^126264266065 is an apocalyptic number.

It is an amenable number.

126264266065 is a deficient number, since it is larger than the sum of its proper divisors (46934365103).

126264266065 is an equidigital number, since it uses as much as digits as its factorization.

126264266065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754368.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 126264266065 in words is "one hundred twenty-six billion, two hundred sixty-four million, two hundred sixty-six thousand, sixty-five".