16985001697 has 8 divisors (see below), whose sum is σ = 17028313344. Its totient is φ = 16941728928.

The previous prime is 16985001679. The next prime is 16985001701. The reversal of 16985001697 is 79610058961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16985001697 - 2¹⁵ = 16984968929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16985001647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994008 + ... + 1010950.

It is an arithmetic number, because the mean of its divisors is an integer number (2128539168).

Almost surely, 2^16985001697 is an apocalyptic number.

It is an amenable number.

16985001697 is a deficient number, since it is larger than the sum of its proper divisors (43311647).

16985001697 is a wasteful number, since it uses less digits than its factorization.

16985001697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19439.

The product of its (nonzero) digits is 816480, while the sum is 52.

The spelling of 16985001697 in words is "sixteen billion, nine hundred eighty-five million, one thousand, six hundred ninety-seven".