16689315795268 has 12 divisors (see below), whose sum is σ = 29207902851820. Its totient is φ = 8344200694752.

The previous prime is 16689315795241. The next prime is 16689315795293. The reversal of 16689315795268 is 86259751398661.

16689315795268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7006651352064 + 9682664443204 = 2647008^2 + 3111698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16689315795194 and 16689315795203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114218583 + ... + 114364606.

Almost surely, 2^{16689315795268} is an apocalyptic number.

It is an amenable number.

16689315795268 is a deficient number, since it is larger than the sum of its proper divisors (12518587056552).

16689315795268 is a wasteful number, since it uses less digits than its factorization.

16689315795268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228601446 (or 228601444 counting only the distinct ones).

The product of its digits is 1175731200, while the sum is 76.

The spelling of 16689315795268 in words is "sixteen trillion, six hundred eighty-nine billion, three hundred fifteen million, seven hundred ninety-five thousand, two hundred sixty-eight".