125166573305 has 8 divisors (see below), whose sum is σ = 150525703944. Its totient is φ = 99916048000.

The previous prime is 125166573299. The next prime is 125166573359. The reversal of 125166573305 is 503375661521.

It can be written as a sum of positive squares in 4 ways, for example, as 2490109801 + 122676463504 = 49901^2 + 350252^2 .

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

It is not a de Polignac number, because 125166573305 - 2⁶ = 125166573241 is a prime.

It is a Duffinian 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, 27148796 + ... + 27153405.

It is an arithmetic number, because the mean of its divisors is an integer number (18815712993).

Almost surely, 2^125166573305 is an apocalyptic number.

It is an amenable number.

125166573305 is a deficient number, since it is larger than the sum of its proper divisors (25359130639).

125166573305 is an equidigital number, since it uses as much as digits as its factorization.

125166573305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54302667.

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 125166573305 in words is "one hundred twenty-five billion, one hundred sixty-six million, five hundred seventy-three thousand, three hundred five".