16722317356 has 6 divisors (see below), whose sum is σ = 29264055380. Its totient is φ = 8361158676.

The previous prime is 16722317341. The next prime is 16722317377. The reversal of 16722317356 is 65371322761.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2090289666 + ... + 2090289673.

Almost surely, 2^16722317356 is an apocalyptic number.

It is an amenable number.

16722317356 is a deficient number, since it is larger than the sum of its proper divisors (12541738024).

16722317356 is a wasteful number, since it uses less digits than its factorization.

16722317356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180579343 (or 4180579341 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The spelling of 16722317356 in words is "sixteen billion, seven hundred twenty-two million, three hundred seventeen thousand, three hundred fifty-six".