16717009969 has 4 divisors (see below), whose sum is σ = 18236738160. Its totient is φ = 15197281780.

The previous prime is 16717009949. The next prime is 16717009979. The reversal of 16717009969 is 96990071761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16717009969 - 2¹⁵ = 16716977201 is a prime.

It is a super-2 number, since 2×16717009969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16717009949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759864079 + ... + 759864100.

It is an arithmetic number, because the mean of its divisors is an integer number (4559184540).

Almost surely, 2^16717009969 is an apocalyptic number.

It is an amenable number.

16717009969 is a deficient number, since it is larger than the sum of its proper divisors (1519728191).

16717009969 is a wasteful number, since it uses less digits than its factorization.

16717009969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519728190.

The product of its (nonzero) digits is 1285956, while the sum is 55.

The spelling of 16717009969 in words is "sixteen billion, seven hundred seventeen million, nine thousand, nine hundred sixty-nine".