66580383284 has 12 divisors (see below), whose sum is σ = 116517507204. Its totient is φ = 33289666944.

The previous prime is 66580383283. The next prime is 66580383361. The reversal of 66580383284 is 48238308566.

It can be written as a sum of positive squares in 2 ways, for example, as 28016064400 + 38564318884 = 167380^2 + 196378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66580383283) 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 in 3 ways as a sum of consecutive naturals, for example, 352454 + ... + 507330.

It is an arithmetic number, because the mean of its divisors is an integer number (9709792267).

Almost surely, 2^66580383284 is an apocalyptic number.

It is an amenable number.

66580383284 is a deficient number, since it is larger than the sum of its proper divisors (49937123920).

66580383284 is a wasteful number, since it uses less digits than its factorization.

66580383284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262354 (or 262352 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 66580383284 in words is "sixty-six billion, five hundred eighty million, three hundred eighty-three thousand, two hundred eighty-four".