16905895994 has 8 divisors (see below), whose sum is σ = 27309524340. Its totient is φ = 7802721216.

The previous prime is 16905895991. The next prime is 16905895997. The reversal of 16905895994 is 49959850961.

It is an interprime number because it is at equal distance from previous prime (16905895991) and next prime (16905895997).

It can be written as a sum of positive squares in 2 ways, for example, as 16844665369 + 61230625 = 129787^2 + 7825^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 16905895994.

It is not an unprimeable number, because it can be changed into a prime (16905895991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325113359 + ... + 325113410.

Almost surely, 2^16905895994 is an apocalyptic number.

16905895994 is a deficient number, since it is larger than the sum of its proper divisors (10403628346).

16905895994 is a wasteful number, since it uses less digits than its factorization.

16905895994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650226784.

The product of its (nonzero) digits is 31492800, while the sum is 65.

The spelling of 16905895994 in words is "sixteen billion, nine hundred five million, eight hundred ninety-five thousand, nine hundred ninety-four".