16656898 has 4 divisors (see below), whose sum is σ = 24985350. Its totient is φ = 8328448.

The previous prime is 16656881. The next prime is 16656907. The reversal of 16656898 is 89865661.

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

It can be written as a sum of positive squares in only one way, i.e., 16621929 + 34969 = 4077^2 + 187^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4164223 + ... + 4164226.

Almost surely, 2^16656898 is an apocalyptic number.

16656898 is a deficient number, since it is larger than the sum of its proper divisors (8328452).

16656898 is an equidigital number, since it uses as much as digits as its factorization.

16656898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8328451.

The product of its digits is 622080, while the sum is 49.

The square root of 16656898 is about 4081.2863168369. The cubic root of 16656898 is about 255.3865622351.

The spelling of 16656898 in words is "sixteen million, six hundred fifty-six thousand, eight hundred ninety-eight".