66349675 has 18 divisors (see below), whose sum is σ = 95707788. Its totient is φ = 45496080.

The previous prime is 66349667. The next prime is 66349681. The reversal of 66349675 is 57694366.

It is not a de Polignac number, because 66349675 - 2³ = 66349667 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25857 + ... + 28306.

Almost surely, 2^66349675 is an apocalyptic number.

66349675 is a deficient number, since it is larger than the sum of its proper divisors (29358113).

66349675 is a wasteful number, since it uses less digits than its factorization.

66349675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54187 (or 54175 counting only the distinct ones).

The product of its digits is 816480, while the sum is 46.

The square root of 66349675 is about 8145.5309833061. The cubic root of 66349675 is about 404.8364426193.

The spelling of 66349675 in words is "sixty-six million, three hundred forty-nine thousand, six hundred seventy-five".