666341325 has 144 divisors (see below), whose sum is σ = 1358413056. Its totient is φ = 310003200.

The previous prime is 666341297. The next prime is 666341353. The reversal of 666341325 is 523143666.

It is an interprime number because it is at equal distance from previous prime (666341297) and next prime (666341353).

It is not a de Polignac number, because 666341325 - 2¹¹ = 666339277 is a prime.

It is a super-2 number, since 2×666341325² = 888021522805511250, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 666341325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5086510 + ... + 5086640.

It is an arithmetic number, because the mean of its divisors is an integer number (9433424).

Almost surely, 2^666341325 is an apocalyptic number.

666341325 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

666341325 is an abundant number, since it is smaller than the sum of its proper divisors (692071731).

666341325 is a wasteful number, since it uses less digits than its factorization.

666341325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 236 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 666341325 is about 25813.5879915985. The cubic root of 666341325 is about 873.4383355513.

It can be divided in two parts, 666341 and 325, that added together give a palindrome (666666).

The spelling of 666341325 in words is "six hundred sixty-six million, three hundred forty-one thousand, three hundred twenty-five".