16692866821469 has 2 divisors, whose sum is σ = 16692866821470. Its totient is φ = 16692866821468.

The previous prime is 16692866821457. The next prime is 16692866821517. The reversal of 16692866821469 is 96412866829661.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8632020280900 + 8060846540569 = 2938030^2 + 2839163^2 .

It is a cyclic number.

It is not a de Polignac number, because 16692866821469 - 2¹² = 16692866817373 is a prime.

It is a super-2 number, since 2×16692866821469² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16692866821396 and 16692866821405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16692866811469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8346433410734 + 8346433410735.

It is an arithmetic number, because the mean of its divisors is an integer number (8346433410735).

Almost surely, 2^{16692866821469} is an apocalyptic number.

It is an amenable number.

16692866821469 is a deficient number, since it is larger than the sum of its proper divisors (1).

16692866821469 is an equidigital number, since it uses as much as digits as its factorization.

16692866821469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 644972544, while the sum is 74.

The spelling of 16692866821469 in words is "sixteen trillion, six hundred ninety-two billion, eight hundred sixty-six million, eight hundred twenty-one thousand, four hundred sixty-nine".