66008575 has 6 divisors (see below), whose sum is σ = 81850664. Its totient is φ = 52806840.

The previous prime is 66008561. The next prime is 66008581. The reversal of 66008575 is 57580066.

It is not a de Polignac number, because 66008575 - 2⁵ = 66008543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1320147 + ... + 1320196.

Almost surely, 2^66008575 is an apocalyptic number.

66008575 is a deficient number, since it is larger than the sum of its proper divisors (15842089).

66008575 is a wasteful number, since it uses less digits than its factorization.

66008575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640353 (or 2640348 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 66008575 is about 8124.5661422626. The cubic root of 66008575 is about 404.1415031392.

The spelling of 66008575 in words is "sixty-six million, eight thousand, five hundred seventy-five".