66325508 has 12 divisors (see below), whose sum is σ = 116449872. Its totient is φ = 33054120.

The previous prime is 66325487. The next prime is 66325513. The reversal of 66325508 is 80552366.

It is a super-2 number, since 2×66325508² = 8798146022916128, which contains 22 as substring.

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, 25778 + ... + 28233.

It is an arithmetic number, because the mean of its divisors is an integer number (9704156).

Almost surely, 2^66325508 is an apocalyptic number.

It is an amenable number.

66325508 is a deficient number, since it is larger than the sum of its proper divisors (50124364).

66325508 is a wasteful number, since it uses less digits than its factorization.

66325508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54322 (or 54320 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 66325508 is about 8144.0473967187. The cubic root of 66325508 is about 404.7872845267.

The spelling of 66325508 in words is "sixty-six million, three hundred twenty-five thousand, five hundred eight".