16618982 has 4 divisors (see below), whose sum is σ = 24928476. Its totient is φ = 8309490.

The previous prime is 16618969. The next prime is 16618997. The reversal of 16618982 is 28981661.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4154744 + ... + 4154747.

It is an arithmetic number, because the mean of its divisors is an integer number (6232119).

Almost surely, 2^16618982 is an apocalyptic number.

16618982 is a deficient number, since it is larger than the sum of its proper divisors (8309494).

16618982 is an equidigital number, since it uses as much as digits as its factorization.

16618982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8309493.

The product of its digits is 41472, while the sum is 41.

The square root of 16618982 is about 4076.6385662700. The cubic root of 16618982 is about 255.1926367015.

The spelling of 16618982 in words is "sixteen million, six hundred eighteen thousand, nine hundred eighty-two".