16651050111497 has 2 divisors, whose sum is σ = 16651050111498. Its totient is φ = 16651050111496.

The previous prime is 16651050111469. The next prime is 16651050111517. The reversal of 16651050111497 is 79411105015661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16650676114576 + 373996921 = 4080524^2 + 19339^2 .

It is a cyclic number.

It is not a de Polignac number, because 16651050111497 - 2¹⁸ = 16651049849353 is a prime.

It is a super-2 number, since 2×16651050111497² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16651050111197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8325525055748 + 8325525055749.

It is an arithmetic number, because the mean of its divisors is an integer number (8325525055749).

Almost surely, 2^{16651050111497} is an apocalyptic number.

It is an amenable number.

16651050111497 is a deficient number, since it is larger than the sum of its proper divisors (1).

16651050111497 is an equidigital number, since it uses as much as digits as its factorization.

16651050111497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 47.

The spelling of 16651050111497 in words is "sixteen trillion, six hundred fifty-one billion, fifty million, one hundred eleven thousand, four hundred ninety-seven".