3125565166 has 16 divisors (see below), whose sum is σ = 4802168448. Its totient is φ = 1524915000.

The previous prime is 3125565143. The next prime is 3125565181. The reversal of 3125565166 is 6615655213.

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, 71041 + ... + 106291.

It is an arithmetic number, because the mean of its divisors is an integer number (300135528).

Almost surely, 2^3125565166 is an apocalyptic number.

3125565166 is a deficient number, since it is larger than the sum of its proper divisors (1676603282).

3125565166 is a wasteful number, since it uses less digits than its factorization.

3125565166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36327.

The product of its digits is 162000, while the sum is 40.

The square root of 3125565166 is about 55906.7542073406. The cubic root of 3125565166 is about 1462.0970000822.

The spelling of 3125565166 in words is "three billion, one hundred twenty-five million, five hundred sixty-five thousand, one hundred sixty-six".