66425066 has 8 divisors (see below), whose sum is σ = 100838304. Its totient is φ = 32812300.

The previous prime is 66425057. The next prime is 66425087. The reversal of 66425066 is 66052466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199910 + ... + 200241.

It is an arithmetic number, because the mean of its divisors is an integer number (12604788).

Almost surely, 2^66425066 is an apocalyptic number.

66425066 is a deficient number, since it is larger than the sum of its proper divisors (34413238).

66425066 is a wasteful number, since it uses less digits than its factorization.

66425066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400236.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 66425066 is about 8150.1574217925. The cubic root of 66425066 is about 404.9897187859.

The spelling of 66425066 in words is "sixty-six million, four hundred twenty-five thousand, sixty-six".