66995344483 has 2 divisors, whose sum is σ = 66995344484. Its totient is φ = 66995344482.

The previous prime is 66995344477. The next prime is 66995344553. The reversal of 66995344483 is 38444359966.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66995344483 is a prime.

It is not a weakly prime, because it can be changed into another prime (66995344463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33497672241 + 33497672242.

It is an arithmetic number, because the mean of its divisors is an integer number (33497672242).

Almost surely, 2^66995344483 is an apocalyptic number.

66995344483 is a deficient number, since it is larger than the sum of its proper divisors (1).

66995344483 is an equidigital number, since it uses as much as digits as its factorization.

66995344483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67184640, while the sum is 61.

The spelling of 66995344483 in words is "sixty-six billion, nine hundred ninety-five million, three hundred forty-four thousand, four hundred eighty-three".