125166623074 has 4 divisors (see below), whose sum is σ = 187749934614. Its totient is φ = 62583311536.

The previous prime is 125166623069. The next prime is 125166623077. The reversal of 125166623074 is 470326661521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 470326661521 = 31 ⋅15171827791.

It can be written as a sum of positive squares in only one way, i.e., 76637617225 + 48529005849 = 276835^2 + 220293^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125166623074.

It is not an unprimeable number, because it can be changed into a prime (125166623077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31291655767 + ... + 31291655770.

Almost surely, 2^125166623074 is an apocalyptic number.

125166623074 is a deficient number, since it is larger than the sum of its proper divisors (62583311540).

125166623074 is an equidigital number, since it uses as much as digits as its factorization.

125166623074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62583311539.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 125166623074 in words is "one hundred twenty-five billion, one hundred sixty-six million, six hundred twenty-three thousand, seventy-four".