666364325 has 24 divisors (see below), whose sum is σ = 903022560. Its totient is φ = 483761600.

The previous prime is 666364297. The next prime is 666364327. The reversal of 666364325 is 523463666.

It is not a de Polignac number, because 666364325 - 2¹⁰ = 666363301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666364327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179387 + ... + 183063.

It is an arithmetic number, because the mean of its divisors is an integer number (37625940).

Almost surely, 2^666364325 is an apocalyptic number.

It is an amenable number.

666364325 is a deficient number, since it is larger than the sum of its proper divisors (236658235).

666364325 is a wasteful number, since it uses less digits than its factorization.

666364325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357 (or 4352 counting only the distinct ones).

The product of its digits is 466560, while the sum is 41.

The square root of 666364325 is about 25814.0334895576. The cubic root of 666364325 is about 873.4483848808.

The spelling of 666364325 in words is "six hundred sixty-six million, three hundred sixty-four thousand, three hundred twenty-five".