125666315914 has 4 divisors (see below), whose sum is σ = 188499473874. Its totient is φ = 62833157956.

The previous prime is 125666315911. The next prime is 125666315939. The reversal of 125666315914 is 419513666521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64397690289 + 61268625625 = 253767^2 + 247525^2 .

It is not an unprimeable number, because it can be changed into a prime (125666315911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31416578977 + ... + 31416578980.

Almost surely, 2^125666315914 is an apocalyptic number.

125666315914 is a deficient number, since it is larger than the sum of its proper divisors (62833157960).

125666315914 is an equidigital number, since it uses as much as digits as its factorization.

125666315914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62833157959.

The product of its digits is 1166400, while the sum is 49.

The spelling of 125666315914 in words is "one hundred twenty-five billion, six hundred sixty-six million, three hundred fifteen thousand, nine hundred fourteen".