659166225 has 24 divisors (see below), whose sum is σ = 1116407712. Its totient is φ = 342979200.

The previous prime is 659166203. The next prime is 659166241. The reversal of 659166225 is 522661956.

It is not a de Polignac number, because 659166225 - 2⁶ = 659166161 is a prime.

It is a super-2 number, since 2×659166225² = 869000224361501250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104107 + ... + 110256.

It is an arithmetic number, because the mean of its divisors is an integer number (46516988).

Almost surely, 2^659166225 is an apocalyptic number.

It is an amenable number.

659166225 is a deficient number, since it is larger than the sum of its proper divisors (457241487).

659166225 is a wasteful number, since it uses less digits than its factorization.

659166225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214417 (or 214412 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 659166225 is about 25674.2327051852. The cubic root of 659166225 is about 870.2919815318.

The spelling of 659166225 in words is "six hundred fifty-nine million, one hundred sixty-six thousand, two hundred twenty-five".