16616411 has 4 divisors (see below), whose sum is σ = 18990192. Its totient is φ = 14242632.

The previous prime is 16616407. The next prime is 16616417. The reversal of 16616411 is 11461661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11461661 = 31 ⋅369731.

It is a cyclic number.

It is not a de Polignac number, because 16616411 - 2² = 16616407 is a prime.

It is a super-2 number, since 2×16616411² = 552210229041842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16616417) 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 3 ways as a sum of consecutive naturals, for example, 1186880 + ... + 1186893.

It is an arithmetic number, because the mean of its divisors is an integer number (4747548).

Almost surely, 2^16616411 is an apocalyptic number.

16616411 is a deficient number, since it is larger than the sum of its proper divisors (2373781).

16616411 is an equidigital number, since it uses as much as digits as its factorization.

16616411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373780.

The product of its digits is 864, while the sum is 26.

The square root of 16616411 is about 4076.3232207469. The cubic root of 16616411 is about 255.1794763666.

The spelling of 16616411 in words is "sixteen million, six hundred sixteen thousand, four hundred eleven".