16196985 has 24 divisors (see below), whose sum is σ = 32086080. Its totient is φ = 7404192.

The previous prime is 16196981. The next prime is 16197001. The reversal of 16196985 is 58969161.

It is not a de Polignac number, because 16196985 - 2² = 16196981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16196985.

It is not an unprimeable number, because it can be changed into a prime (16196981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25395 + ... + 26024.

It is an arithmetic number, because the mean of its divisors is an integer number (1336920).

Almost surely, 2^16196985 is an apocalyptic number.

16196985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16196985 is a deficient number, since it is larger than the sum of its proper divisors (15889095).

16196985 is a wasteful number, since it uses less digits than its factorization.

16196985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51437 (or 51434 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 16196985 is about 4024.5478006852. The cubic root of 16196985 is about 253.0141013976.

The spelling of 16196985 in words is "sixteen million, one hundred ninety-six thousand, nine hundred eighty-five".