66734404 has 36 divisors (see below), whose sum is σ = 129271212. Its totient is φ = 30120640.

The previous prime is 66734399. The next prime is 66734411. The reversal of 66734404 is 40443766.

66734404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 48330304 + 18404100 = 6952^2 + 4290^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66734404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83334 + ... + 84130.

It is an arithmetic number, because the mean of its divisors is an integer number (3590867).

Almost surely, 2^66734404 is an apocalyptic number.

It is an amenable number.

66734404 is a deficient number, since it is larger than the sum of its proper divisors (62536808).

66734404 is a wasteful number, since it uses less digits than its factorization.

66734404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 66734404 is about 8169.1128037260. The cubic root of 66734404 is about 405.6174172670.

The spelling of 66734404 in words is "sixty-six million, seven hundred thirty-four thousand, four hundred four".