66346325 has 12 divisors (see below), whose sum is σ = 87109380. Its totient is φ = 49954560.

The previous prime is 66346321. The next prime is 66346327. The reversal of 66346325 is 52364366.

It can be written as a sum of positive squares in 6 ways, for example, as 703921 + 65642404 = 839^2 + 8102^2 .

It is not a de Polignac number, because 66346325 - 2² = 66346321 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66346321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77630 + ... + 78479.

It is an arithmetic number, because the mean of its divisors is an integer number (7259115).

Almost surely, 2^66346325 is an apocalyptic number.

It is an amenable number.

66346325 is a deficient number, since it is larger than the sum of its proper divisors (20763055).

66346325 is a wasteful number, since it uses less digits than its factorization.

66346325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156136 (or 156131 counting only the distinct ones).

The product of its digits is 77760, while the sum is 35.

The square root of 66346325 is about 8145.3253464794. The cubic root of 66346325 is about 404.8296290973.

The spelling of 66346325 in words is "sixty-six million, three hundred forty-six thousand, three hundred twenty-five".