16629081 has 12 divisors (see below), whose sum is σ = 25792272. Its totient is φ = 9502248.

The previous prime is 16629071. The next prime is 16629103. The reversal of 16629081 is 18092661.

It is not a de Polignac number, because 16629081 - 2⁹ = 16628569 is a prime.

It is a super-2 number, since 2×16629081² = 553052669809122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16629031) 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 11 ways as a sum of consecutive naturals, for example, 56415 + ... + 56708.

It is an arithmetic number, because the mean of its divisors is an integer number (2149356).

Almost surely, 2^16629081 is an apocalyptic number.

It is an amenable number.

16629081 is a deficient number, since it is larger than the sum of its proper divisors (9163191).

16629081 is a wasteful number, since it uses less digits than its factorization.

16629081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113140 (or 113133 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 16629081 is about 4077.8770211962. The cubic root of 16629081 is about 255.2443179372.

The spelling of 16629081 in words is "sixteen million, six hundred twenty-nine thousand, eighty-one".