125046666205 has 4 divisors (see below), whose sum is σ = 150055999452. Its totient is φ = 100037332960.

The previous prime is 125046666187. The next prime is 125046666229. The reversal of 125046666205 is 502666640521.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62381056644 + 62665609561 = 249762^2 + 250331^2 .

It is not a de Polignac number, because 125046666205 - 2²³ = 125038277597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12504666616 + ... + 12504666625.

It is an arithmetic number, because the mean of its divisors is an integer number (37513999863).

Almost surely, 2^125046666205 is an apocalyptic number.

It is an amenable number.

125046666205 is a deficient number, since it is larger than the sum of its proper divisors (25009333247).

125046666205 is an equidigital number, since it uses as much as digits as its factorization.

125046666205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25009333246.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 125046666205 in words is "one hundred twenty-five billion, forty-six million, six hundred sixty-six thousand, two hundred five".