66345675 has 48 divisors (see below), whose sum is σ = 120742272. Its totient is φ = 31878400.

The previous prime is 66345659. The next prime is 66345691. The reversal of 66345675 is 57654366.

It is an interprime number because it is at equal distance from previous prime (66345659) and next prime (66345691).

It is not a de Polignac number, because 66345675 - 2⁴ = 66345659 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112732 + ... + 113318.

It is an arithmetic number, because the mean of its divisors is an integer number (2515464).

Almost surely, 2^66345675 is an apocalyptic number.

66345675 is a deficient number, since it is larger than the sum of its proper divisors (54396597).

66345675 is a wasteful number, since it uses less digits than its factorization.

66345675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 743 counting only the distinct ones).

The product of its digits is 453600, while the sum is 42.

The square root of 66345675 is about 8145.2854461952. The cubic root of 66345675 is about 404.8283070441.

The spelling of 66345675 in words is "sixty-six million, three hundred forty-five thousand, six hundred seventy-five".