66064040044 has 6 divisors (see below), whose sum is σ = 115612070084. Its totient is φ = 33032020020.

The previous prime is 66064040039. The next prime is 66064040059. The reversal of 66064040044 is 44004046066.

It is a junction number, because it is equal to n+sod(n) for n = 66064039991 and 66064040009.

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, 8258005002 + ... + 8258005009.

Almost surely, 2^66064040044 is an apocalyptic number.

It is an amenable number.

66064040044 is a deficient number, since it is larger than the sum of its proper divisors (49548030040).

66064040044 is a wasteful number, since it uses less digits than its factorization.

66064040044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16516010015 (or 16516010013 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 66064040044 in words is "sixty-six billion, sixty-four million, forty thousand, forty-four", and thus it is an eban number.