16045766257 has 2 divisors, whose sum is σ = 16045766258. Its totient is φ = 16045766256.

The previous prime is 16045766227. The next prime is 16045766293. The reversal of 16045766257 is 75266754061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9102877281 + 6942888976 = 95409^2 + 83324^2 .

It is an emirp because it is prime and its reverse (75266754061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16045766257 - 2¹⁵ = 16045733489 is a prime.

It is a super-2 number, since 2×16045766257² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16045766257.

It is not a weakly prime, because it can be changed into another prime (16045766227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8022883128 + 8022883129.

It is an arithmetic number, because the mean of its divisors is an integer number (8022883129).

Almost surely, 2^16045766257 is an apocalyptic number.

It is an amenable number.

16045766257 is a deficient number, since it is larger than the sum of its proper divisors (1).

16045766257 is an equidigital number, since it uses as much as digits as its factorization.

16045766257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 16045766257 in words is "sixteen billion, forty-five million, seven hundred sixty-six thousand, two hundred fifty-seven".