16697161 has 8 divisors (see below), whose sum is σ = 18091584. Its totient is φ = 15318480.

The previous prime is 16697147. The next prime is 16697167. The reversal of 16697161 is 16179661.

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 16697161 - 2¹⁹ = 16172873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16697161.

It is not an unprimeable number, because it can be changed into a prime (16697167) 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, 1675 + ... + 6016.

It is an arithmetic number, because the mean of its divisors is an integer number (2261448).

Almost surely, 2^16697161 is an apocalyptic number.

It is an amenable number.

16697161 is a deficient number, since it is larger than the sum of its proper divisors (1394423).

16697161 is a wasteful number, since it uses less digits than its factorization.

16697161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871.

The product of its digits is 13608, while the sum is 37.

The square root of 16697161 is about 4086.2159756919. The cubic root of 16697161 is about 255.5921698502.

The spelling of 16697161 in words is "sixteen million, six hundred ninety-seven thousand, one hundred sixty-one".