66733403071 has 2 divisors, whose sum is σ = 66733403072. Its totient is φ = 66733403070.

The previous prime is 66733403069. The next prime is 66733403119. The reversal of 66733403071 is 17030433766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66733403071 - 2¹ = 66733403069 is a prime.

Together with 66733403069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66733403021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33366701535 + 33366701536.

It is an arithmetic number, because the mean of its divisors is an integer number (33366701536).

Almost surely, 2^66733403071 is an apocalyptic number.

66733403071 is a deficient number, since it is larger than the sum of its proper divisors (1).

66733403071 is an equidigital number, since it uses as much as digits as its factorization.

66733403071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 40.

The spelling of 66733403071 in words is "sixty-six billion, seven hundred thirty-three million, four hundred three thousand, seventy-one".