125664149673 has 12 divisors (see below), whose sum is σ = 183121210740. Its totient is φ = 83034717696.

The previous prime is 125664149659. The next prime is 125664149683. The reversal of 125664149673 is 376941466521.

It is a happy number.

125664149673 is a `hidden beast` number, since 1 + 2 + 566 + 4 + 1 + 4 + 9 + 6 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67856603049 + 57807546624 = 260493^2 + 240432^2 .

It is not a de Polignac number, because 125664149673 - 2⁸ = 125664149417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125664149683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61780768 + ... + 61782801.

It is an arithmetic number, because the mean of its divisors is an integer number (15260100895).

Almost surely, 2^125664149673 is an apocalyptic number.

It is an amenable number.

125664149673 is a deficient number, since it is larger than the sum of its proper divisors (57457061067).

125664149673 is a wasteful number, since it uses less digits than its factorization.

125664149673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123563688 (or 123563685 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 125664149673 in words is "one hundred twenty-five billion, six hundred sixty-four million, one hundred forty-nine thousand, six hundred seventy-three".