16129663 has 6 divisors (see below), whose sum is σ = 17729432. Its totient is φ = 14663220.

The previous prime is 16129661. The next prime is 16129679. The reversal of 16129663 is 36692161.

16129663 = T₁₇₀₇ + T₁₇₀₈ + ... + T₁₇₁₇.

It is not a de Polignac number, because 16129663 - 2¹ = 16129661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16129661) 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 5 ways as a sum of consecutive naturals, for example, 66531 + ... + 66772.

Almost surely, 2^16129663 is an apocalyptic number.

16129663 is a deficient number, since it is larger than the sum of its proper divisors (1599769).

16129663 is a wasteful number, since it uses less digits than its factorization.

16129663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133325 (or 133314 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 16129663 is about 4016.1751704825. The cubic root of 16129663 is about 252.6630675579.

The spelling of 16129663 in words is "sixteen million, one hundred twenty-nine thousand, six hundred sixty-three".