66125365 has 8 divisors (see below), whose sum is σ = 82086840. Its totient is φ = 51076032.

The previous prime is 66125363. The next prime is 66125383. The reversal of 66125365 is 56352166.

It can be written as a sum of positive squares in 4 ways, for example, as 174724 + 65950641 = 418^2 + 8121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66125365 - 2¹ = 66125363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66125365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66125363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227874 + ... + 228163.

It is an arithmetic number, because the mean of its divisors is an integer number (10260855).

Almost surely, 2^66125365 is an apocalyptic number.

It is an amenable number.

66125365 is a deficient number, since it is larger than the sum of its proper divisors (15961475).

66125365 is a wasteful number, since it uses less digits than its factorization.

66125365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456071.

The product of its digits is 32400, while the sum is 34.

The square root of 66125365 is about 8131.7504265687. The cubic root of 66125365 is about 404.3797139901.

The spelling of 66125365 in words is "sixty-six million, one hundred twenty-five thousand, three hundred sixty-five".