16905217235 has 8 divisors (see below), whose sum is σ = 21168272160. Its totient is φ = 12936166144.

The previous prime is 16905217223. The next prime is 16905217261. The reversal of 16905217235 is 53271250961.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16905217235 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16905217192 and 16905217201.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 73500830 + ... + 73501059.

It is an arithmetic number, because the mean of its divisors is an integer number (2646034020).

Almost surely, 2^16905217235 is an apocalyptic number.

16905217235 is a deficient number, since it is larger than the sum of its proper divisors (4263054925).

16905217235 is a wasteful number, since it uses less digits than its factorization.

16905217235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147001917.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 16905217235 in words is "sixteen billion, nine hundred five million, two hundred seventeen thousand, two hundred thirty-five".