16699070147261 has 2 divisors, whose sum is σ = 16699070147262. Its totient is φ = 16699070147260.

The previous prime is 16699070147171. The next prime is 16699070147273. The reversal of 16699070147261 is 16274107099661.

It is a happy number.

16699070147261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10558561367236 + 6140508780025 = 3249394^2 + 2478005^2 .

It is a cyclic number.

It is not a de Polignac number, because 16699070147261 - 2³⁰ = 16697996405437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16699070147261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16699070147161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8349535073630 + 8349535073631.

It is an arithmetic number, because the mean of its divisors is an integer number (8349535073631).

Almost surely, 2^{16699070147261} is an apocalyptic number.

It is an amenable number.

16699070147261 is a deficient number, since it is larger than the sum of its proper divisors (1).

16699070147261 is an equidigital number, since it uses as much as digits as its factorization.

16699070147261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 59.

The spelling of 16699070147261 in words is "sixteen trillion, six hundred ninety-nine billion, seventy million, one hundred forty-seven thousand, two hundred sixty-one".