66448052 has 24 divisors (see below), whose sum is σ = 127676640. Its totient is φ = 30008160.

The previous prime is 66448033. The next prime is 66448069. The reversal of 66448052 is 25084466.

It is a super-2 number, since 2×66448052² = 8830687229189408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2099 + ... + 11717.

It is an arithmetic number, because the mean of its divisors is an integer number (5319860).

Almost surely, 2^66448052 is an apocalyptic number.

It is an amenable number.

66448052 is a deficient number, since it is larger than the sum of its proper divisors (61228588).

66448052 is a wasteful number, since it uses less digits than its factorization.

66448052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791 (or 9789 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 66448052 is about 8151.5674566307. The cubic root of 66448052 is about 405.0364281616.

The spelling of 66448052 in words is "sixty-six million, four hundred forty-eight thousand, fifty-two".