16690205368705 has 16 divisors (see below), whose sum is σ = 21988161710784. Its totient is φ = 12061016959680.

The previous prime is 16690205368691. The next prime is 16690205368717. The reversal of 16690205368705 is 50786350209661.

It is not a de Polignac number, because 16690205368705 - 2⁴¹ = 14491182113153 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 16690205368705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966419007 + ... + 966436276.

It is an arithmetic number, because the mean of its divisors is an integer number (1374260106924).

Almost surely, 2^{16690205368705} is an apocalyptic number.

It is an amenable number.

16690205368705 is a deficient number, since it is larger than the sum of its proper divisors (5297956342079).

16690205368705 is a wasteful number, since it uses less digits than its factorization.

16690205368705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932855456.

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 16690205368705 in words is "sixteen trillion, six hundred ninety billion, two hundred five million, three hundred sixty-eight thousand, seven hundred five".