16661414 has 16 divisors (see below), whose sum is σ = 31159296. Its totient is φ = 6491400.

The previous prime is 16661401. The next prime is 16661417. The reversal of 16661414 is 41416661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16661417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53942 + ... + 54249.

It is an arithmetic number, because the mean of its divisors is an integer number (1947456).

Almost surely, 2^16661414 is an apocalyptic number.

16661414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16661414 is a deficient number, since it is larger than the sum of its proper divisors (14497882).

16661414 is a wasteful number, since it uses less digits than its factorization.

16661414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108211.

The product of its digits is 3456, while the sum is 29.

The square root of 16661414 is about 4081.8395362875. The cubic root of 16661414 is about 255.4096401916.

The spelling of 16661414 in words is "sixteen million, six hundred sixty-one thousand, four hundred fourteen".