16621071702211 has 8 divisors (see below), whose sum is σ = 16625848644944. Its totient is φ = 16616295158400.

The previous prime is 16621071702187. The next prime is 16621071702233. The reversal of 16621071702211 is 11220717012661.

16621071702211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-16621071702211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16621071702811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96381415 + ... + 96553711.

It is an arithmetic number, because the mean of its divisors is an integer number (2078231080618).

Almost surely, 2^{16621071702211} is an apocalyptic number.

16621071702211 is a deficient number, since it is larger than the sum of its proper divisors (4776942733).

16621071702211 is a wasteful number, since it uses less digits than its factorization.

16621071702211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199461.

The product of its (nonzero) digits is 14112, while the sum is 37.

Adding to 16621071702211 its reverse (11220717012661), we get a palindrome (27841788714872).

The spelling of 16621071702211 in words is "sixteen trillion, six hundred twenty-one billion, seventy-one million, seven hundred two thousand, two hundred eleven".