16721246071 has 8 divisors (see below), whose sum is σ = 17078840064. Its totient is φ = 16363728120.

The previous prime is 16721246027. The next prime is 16721246083. The reversal of 16721246071 is 17064212761.

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

It is a cyclic number.

It is not a de Polignac number, because 16721246071 - 2²⁹ = 16184375159 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 16721246071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16721246011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 779536 + ... + 800698.

It is an arithmetic number, because the mean of its divisors is an integer number (2134855008).

Almost surely, 2^16721246071 is an apocalyptic number.

16721246071 is a deficient number, since it is larger than the sum of its proper divisors (357593993).

16721246071 is a wasteful number, since it uses less digits than its factorization.

16721246071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38021.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 16721246071 in words is "sixteen billion, seven hundred twenty-one million, two hundred forty-six thousand, seventy-one".