16722030621 has 8 divisors (see below), whose sum is σ = 22297413600. Its totient is φ = 11147334032.

The previous prime is 16722030617. The next prime is 16722030623. The reversal of 16722030621 is 12603022761.

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 16722030621 - 2² = 16722030617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16722030623) 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 7 ways as a sum of consecutive naturals, for example, 111771 + ... + 214328.

It is an arithmetic number, because the mean of its divisors is an integer number (2787176700).

Almost surely, 2^16722030621 is an apocalyptic number.

It is an amenable number.

16722030621 is a deficient number, since it is larger than the sum of its proper divisors (5575382979).

16722030621 is a wasteful number, since it uses less digits than its factorization.

16722030621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343195.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 16722030621 in words is "sixteen billion, seven hundred twenty-two million, thirty thousand, six hundred twenty-one".