16068979 has 4 divisors (see below), whose sum is σ = 16289176. Its totient is φ = 15848784.

The previous prime is 16068959. The next prime is 16068991. The reversal of 16068979 is 97986061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16068979 - 2¹¹ = 16066931 is a prime.

It is a super-2 number, since 2×16068979² = 516424172204882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16068959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109989 + ... + 110134.

It is an arithmetic number, because the mean of its divisors is an integer number (4072294).

Almost surely, 2^16068979 is an apocalyptic number.

16068979 is a deficient number, since it is larger than the sum of its proper divisors (220197).

16068979 is an equidigital number, since it uses as much as digits as its factorization.

16068979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220196.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 16068979 is about 4008.6131018097. The cubic root of 16068979 is about 252.3458078957.

It can be divided in two parts, 1606 and 8979, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 16068979 in words is "sixteen million, sixty-eight thousand, nine hundred seventy-nine".