16697853932479 has 2 divisors, whose sum is σ = 16697853932480. Its totient is φ = 16697853932478.

The previous prime is 16697853932471. The next prime is 16697853932491. The reversal of 16697853932479 is 97423935879661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16697853932479 - 2³ = 16697853932471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16697853932399 and 16697853932408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16697853932471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8348926966239 + 8348926966240.

It is an arithmetic number, because the mean of its divisors is an integer number (8348926966240).

Almost surely, 2^{16697853932479} is an apocalyptic number.

16697853932479 is a deficient number, since it is larger than the sum of its proper divisors (1).

16697853932479 is an equidigital number, since it uses as much as digits as its factorization.

16697853932479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3703553280, while the sum is 79.

The spelling of 16697853932479 in words is "sixteen trillion, six hundred ninety-seven billion, eight hundred fifty-three million, nine hundred thirty-two thousand, four hundred seventy-nine".