66448084 has 6 divisors (see below), whose sum is σ = 116284154. Its totient is φ = 33224040.

The previous prime is 66448069. The next prime is 66448133. The reversal of 66448084 is 48084466.

It can be written as a sum of positive squares in only one way, i.e., 49308484 + 17139600 = 7022^2 + 4140^2 .

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 as a sum of consecutive naturals, namely, 8306007 + ... + 8306014.

Almost surely, 2^66448084 is an apocalyptic number.

It is an amenable number.

66448084 is a deficient number, since it is larger than the sum of its proper divisors (49836070).

66448084 is a wasteful number, since it uses less digits than its factorization.

66448084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16612025 (or 16612023 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 66448084 is about 8151.5694194431. The cubic root of 66448084 is about 405.0364931807.

The spelling of 66448084 in words is "sixty-six million, four hundred forty-eight thousand, eighty-four".