66034039 has 4 divisors (see below), whose sum is σ = 67153320. Its totient is φ = 64914760.

The previous prime is 66034037. The next prime is 66034057. The reversal of 66034039 is 93043066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66034039 - 2¹ = 66034037 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66034039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66034037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559552 + ... + 559669.

It is an arithmetic number, because the mean of its divisors is an integer number (16788330).

Almost surely, 2^66034039 is an apocalyptic number.

66034039 is a deficient number, since it is larger than the sum of its proper divisors (1119281).

66034039 is a wasteful number, since it uses less digits than its factorization.

66034039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119280.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 66034039 is about 8126.1330902219. The cubic root of 66034039 is about 404.1934647528.

The spelling of 66034039 in words is "sixty-six million, thirty-four thousand, thirty-nine".