66031849067 has 2 divisors, whose sum is σ = 66031849068. Its totient is φ = 66031849066.

The previous prime is 66031849061. The next prime is 66031849087. The reversal of 66031849067 is 76094813066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66031849067 - 2⁶ = 66031849003 is a prime.

It is not a weakly prime, because it can be changed into another prime (66031849061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33015924533 + 33015924534.

It is an arithmetic number, because the mean of its divisors is an integer number (33015924534).

Almost surely, 2^66031849067 is an apocalyptic number.

66031849067 is a deficient number, since it is larger than the sum of its proper divisors (1).

66031849067 is an equidigital number, since it uses as much as digits as its factorization.

66031849067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 66031849067 in words is "sixty-six billion, thirty-one million, eight hundred forty-nine thousand, sixty-seven".