16339720687291 has 2 divisors, whose sum is σ = 16339720687292. Its totient is φ = 16339720687290.

The previous prime is 16339720687261. The next prime is 16339720687321. The reversal of 16339720687291 is 19278602793361.

It is a balanced prime because it is at equal distance from previous prime (16339720687261) and next prime (16339720687321).

It is a cyclic number.

It is not a de Polignac number, because 16339720687291 - 2³¹ = 16337573203643 is a prime.

It is not a weakly prime, because it can be changed into another prime (16339720687201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8169860343645 + 8169860343646.

It is an arithmetic number, because the mean of its divisors is an integer number (8169860343646).

Almost surely, 2^{16339720687291} is an apocalyptic number.

16339720687291 is a deficient number, since it is larger than the sum of its proper divisors (1).

16339720687291 is an equidigital number, since it uses as much as digits as its factorization.

16339720687291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 16339720687291 in words is "sixteen trillion, three hundred thirty-nine billion, seven hundred twenty million, six hundred eighty-seven thousand, two hundred ninety-one".