133319966447639 has 2 divisors, whose sum is σ = 133319966447640. Its totient is φ = 133319966447638.

The previous prime is 133319966447621. The next prime is 133319966447663. The reversal of 133319966447639 is 936744669913331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133319966447639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133319966447539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66659983223819 + 66659983223820.

It is an arithmetic number, because the mean of its divisors is an integer number (66659983223820).

Almost surely, 2^{133319966447639} is an apocalyptic number.

133319966447639 is a deficient number, since it is larger than the sum of its proper divisors (1).

133319966447639 is an equidigital number, since it uses as much as digits as its factorization.

133319966447639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428513408, while the sum is 74.

The spelling of 133319966447639 in words is "one hundred thirty-three trillion, three hundred nineteen billion, nine hundred sixty-six million, four hundred forty-seven thousand, six hundred thirty-nine".