66675608 has 16 divisors (see below), whose sum is σ = 126232080. Its totient is φ = 33013728.

The previous prime is 66675607. The next prime is 66675613. The reversal of 66675608 is 80657666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66675607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39635 + ... + 41282.

It is an arithmetic number, because the mean of its divisors is an integer number (7889505).

Almost surely, 2^66675608 is an apocalyptic number.

It is an amenable number.

66675608 is a deficient number, since it is larger than the sum of its proper divisors (59556472).

66675608 is a wasteful number, since it uses less digits than its factorization.

66675608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81026 (or 81022 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 66675608 is about 8165.5133335266. The cubic root of 66675608 is about 405.4982598930.

The spelling of 66675608 in words is "sixty-six million, six hundred seventy-five thousand, six hundred eight".