66068595 has 32 divisors (see below), whose sum is σ = 121251840. Its totient is φ = 34097760.

The previous prime is 66068557. The next prime is 66068599. The reversal of 66068595 is 59586066.

It is not a de Polignac number, because 66068595 - 2¹⁸ = 65806451 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 66068595.

It is not an unprimeable number, because it can be changed into a prime (66068599) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3709 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (3789120).

Almost surely, 2^66068595 is an apocalyptic number.

66068595 is a deficient number, since it is larger than the sum of its proper divisors (55183245).

66068595 is a wasteful number, since it uses less digits than its factorization.

66068595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15832 (or 15826 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 66068595 is about 8128.2590386872. The cubic root of 66068595 is about 404.2639580615.

The spelling of 66068595 in words is "sixty-six million, sixty-eight thousand, five hundred ninety-five".