16631106 has 16 divisors (see below), whose sum is σ = 33342624. Its totient is φ = 5530304.

The previous prime is 16631089. The next prime is 16631107. The reversal of 16631106 is 60113661.

It is a super-4 number, since 4×16631106⁴ (a number of 30 digits) contains 4444 as substring.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16631107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471 + ... + 5786.

It is an arithmetic number, because the mean of its divisors is an integer number (2083914).

Almost surely, 2^16631106 is an apocalyptic number.

16631106 is an abundant number, since it is smaller than the sum of its proper divisors (16711518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16631106 is a wasteful number, since it uses less digits than its factorization.

16631106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6705.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 16631106 is about 4078.1253045977. The cubic root of 16631106 is about 255.2546782765.

Adding to 16631106 its reverse (60113661), we get a palindrome (76744767).

The spelling of 16631106 in words is "sixteen million, six hundred thirty-one thousand, one hundred six".