66648152 has 8 divisors (see below), whose sum is σ = 124965300. Its totient is φ = 33324072.

The previous prime is 66648149. The next prime is 66648161. The reversal of 66648152 is 25184666.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4165502 + ... + 4165517.

Almost surely, 2^66648152 is an apocalyptic number.

It is an amenable number.

66648152 is a deficient number, since it is larger than the sum of its proper divisors (58317148).

66648152 is a wasteful number, since it uses less digits than its factorization.

66648152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8331025 (or 8331021 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 66648152 is about 8163.8319433952. The cubic root of 66648152 is about 405.4425929153.

The spelling of 66648152 in words is "sixty-six million, six hundred forty-eight thousand, one hundred fifty-two".