16109995 has 8 divisors (see below), whose sum is σ = 21089520. Its totient is φ = 11716320.

The previous prime is 16109953. The next prime is 16110001. The reversal of 16109995 is 59990161.

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

It is not a de Polignac number, because 16109995 - 2¹¹ = 16107947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146400 + ... + 146509.

It is an arithmetic number, because the mean of its divisors is an integer number (2636190).

Almost surely, 2^16109995 is an apocalyptic number.

16109995 is a deficient number, since it is larger than the sum of its proper divisors (4979525).

16109995 is a wasteful number, since it uses less digits than its factorization.

16109995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292925.

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 16109995 is about 4013.7258252153. The cubic root of 16109995 is about 252.5603293416.

It can be divided in two parts, 16 and 109995, that added together give a palindrome (110011).

The spelling of 16109995 in words is "sixteen million, one hundred nine thousand, nine hundred ninety-five".