16661714 has 4 divisors (see below), whose sum is σ = 24992574. Its totient is φ = 8330856.

The previous prime is 16661713. The next prime is 16661741. The reversal of 16661714 is 41716661.

It is a happy number.

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., 15015625 + 1646089 = 3875^2 + 1283^2 .

It is a super-2 number, since 2×16661714² = 555225426835592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16661713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4165427 + ... + 4165430.

Almost surely, 2^16661714 is an apocalyptic number.

16661714 is a deficient number, since it is larger than the sum of its proper divisors (8330860).

16661714 is an equidigital number, since it uses as much as digits as its factorization.

16661714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8330859.

The product of its digits is 6048, while the sum is 32.

The square root of 16661714 is about 4081.8762842595. The cubic root of 16661714 is about 255.4111731233.

The spelling of 16661714 in words is "sixteen million, six hundred sixty-one thousand, seven hundred fourteen".