66395295 has 40 divisors (see below), whose sum is σ = 120748320. Its totient is φ = 34896960.

The previous prime is 66395257. The next prime is 66395299. The reversal of 66395295 is 59259366.

66395295 is a `hidden beast` number, since 6 + 639 + 5 + 2 + 9 + 5 = 666.

It is not a de Polignac number, because 66395295 - 2¹⁰ = 66394271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 66395295.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66395299) 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 39 ways as a sum of consecutive naturals, for example, 27601 + ... + 29909.

It is an arithmetic number, because the mean of its divisors is an integer number (3018708).

Almost surely, 2^66395295 is an apocalyptic number.

66395295 is a deficient number, since it is larger than the sum of its proper divisors (54353025).

66395295 is a wasteful number, since it uses less digits than its factorization.

66395295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2388 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 66395295 is about 8148.3308106630. The cubic root of 66395295 is about 404.9292057328.

The spelling of 66395295 in words is "sixty-six million, three hundred ninety-five thousand, two hundred ninety-five".