133681608707 has 2 divisors, whose sum is σ = 133681608708. Its totient is φ = 133681608706.

The previous prime is 133681608677. The next prime is 133681608727. The reversal of 133681608707 is 707806186331.

It is a strong prime.

It is an emirp because it is prime and its reverse (707806186331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133681608707 - 2¹² = 133681604611 is a prime.

It is not a weakly prime, because it can be changed into another prime (133681608727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66840804353 + 66840804354.

It is an arithmetic number, because the mean of its divisors is an integer number (66840804354).

Almost surely, 2^133681608707 is an apocalyptic number.

133681608707 is a deficient number, since it is larger than the sum of its proper divisors (1).

133681608707 is an equidigital number, since it uses as much as digits as its factorization.

133681608707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 133681608707 in words is "one hundred thirty-three billion, six hundred eighty-one million, six hundred eight thousand, seven hundred seven".