66580383283 has 2 divisors, whose sum is σ = 66580383284. Its totient is φ = 66580383282.

The previous prime is 66580383277. The next prime is 66580383361. The reversal of 66580383283 is 38238308566.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66580383283 is a prime.

It is a super-2 number, since 2×66580383283² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66580383283.

It is not a weakly prime, because it can be changed into another prime (66580683283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33290191641 + 33290191642.

It is an arithmetic number, because the mean of its divisors is an integer number (33290191642).

Almost surely, 2^66580383283 is an apocalyptic number.

66580383283 is a deficient number, since it is larger than the sum of its proper divisors (1).

66580383283 is an equidigital number, since it uses as much as digits as its factorization.

66580383283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 66580383283 in words is "sixty-six billion, five hundred eighty million, three hundred eighty-three thousand, two hundred eighty-three".