125217653199 has 16 divisors (see below), whose sum is σ = 169465012992. Its totient is φ = 82224603648.

The previous prime is 125217653173. The next prime is 125217653201. The reversal of 125217653199 is 991356712521.

It is not a de Polignac number, because 125217653199 - 2²¹ = 125215556047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125217653149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2682927 + ... + 2729199.

It is an arithmetic number, because the mean of its divisors is an integer number (10591563312).

Almost surely, 2^125217653199 is an apocalyptic number.

125217653199 is a deficient number, since it is larger than the sum of its proper divisors (44247359793).

125217653199 is a wasteful number, since it uses less digits than its factorization.

125217653199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59806.

The product of its digits is 1020600, while the sum is 51.

The spelling of 125217653199 in words is "one hundred twenty-five billion, two hundred seventeen million, six hundred fifty-three thousand, one hundred ninety-nine".