126565443645064 has 8 divisors (see below), whose sum is σ = 237310206834510. Its totient is φ = 63282721822528.

The previous prime is 126565443645013. The next prime is 126565443645077. The reversal of 126565443645064 is 460546344565621.

It can be written as a sum of positive squares in only one way, i.e., 124127629822564 + 2437813822500 = 11141258^2 + 1561350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 126565443644993 and 126565443645011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7910340227809 + ... + 7910340227824.

Almost surely, 2^{126565443645064} is an apocalyptic number.

It is an amenable number.

126565443645064 is a deficient number, since it is larger than the sum of its proper divisors (110744763189446).

126565443645064 is a wasteful number, since it uses less digits than its factorization.

126565443645064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15820680455639 (or 15820680455635 counting only the distinct ones).

The product of its (nonzero) digits is 248832000, while the sum is 61.

The spelling of 126565443645064 in words is "one hundred twenty-six trillion, five hundred sixty-five billion, four hundred forty-three million, six hundred forty-five thousand, sixty-four".