16722159 has 8 divisors (see below), whose sum is σ = 22369152. Its totient is φ = 11111640.

The previous prime is 16722151. The next prime is 16722161. The reversal of 16722159 is 95122761.

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

It is not a de Polignac number, because 16722159 - 2³ = 16722151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16722151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8029 + ... + 9894.

It is an arithmetic number, because the mean of its divisors is an integer number (2796144).

Almost surely, 2^16722159 is an apocalyptic number.

16722159 is a deficient number, since it is larger than the sum of its proper divisors (5646993).

16722159 is a wasteful number, since it uses less digits than its factorization.

16722159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18237.

The product of its digits is 7560, while the sum is 33.

The square root of 16722159 is about 4089.2736518849. The cubic root of 16722159 is about 255.7196587319.

The spelling of 16722159 in words is "sixteen million, seven hundred twenty-two thousand, one hundred fifty-nine".