125945845165 has 8 divisors (see below), whose sum is σ = 172725730560. Its totient is φ = 86362865232.

The previous prime is 125945845099. The next prime is 125945845187. The reversal of 125945845165 is 561548549521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125945845165 - 2⁹ = 125945844653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1799226325 + ... + 1799226394.

It is an arithmetic number, because the mean of its divisors is an integer number (21590716320).

Almost surely, 2^125945845165 is an apocalyptic number.

It is an amenable number.

125945845165 is a deficient number, since it is larger than the sum of its proper divisors (46779885395).

125945845165 is an equidigital number, since it uses as much as digits as its factorization.

125945845165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598452731.

The product of its digits is 8640000, while the sum is 55.

The spelling of 125945845165 in words is "one hundred twenty-five billion, nine hundred forty-five million, eight hundred forty-five thousand, one hundred sixty-five".