66078304 has 12 divisors (see below), whose sum is σ = 130091724. Its totient is φ = 33039136.

The previous prime is 66078301. The next prime is 66078343. The reversal of 66078304 is 40387066.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 66078304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66078301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032442 + ... + 1032505.

It is an arithmetic number, because the mean of its divisors is an integer number (10840977).

Almost surely, 2^66078304 is an apocalyptic number.

It is an amenable number.

66078304 is a deficient number, since it is larger than the sum of its proper divisors (64013420).

66078304 is a wasteful number, since it uses less digits than its factorization.

66078304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064957 (or 2064949 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 66078304 is about 8128.8562541110. The cubic root of 66078304 is about 404.2837597364.

The spelling of 66078304 in words is "sixty-six million, seventy-eight thousand, three hundred four".