16663234 has 24 divisors (see below), whose sum is σ = 29259468. Its totient is φ = 7096320.

The previous prime is 16663219. The next prime is 16663243. The reversal of 16663234 is 43236661.

16663234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15093225 + 1570009 = 3885^2 + 1253^2 .

16663234 is a modest number, since divided by 3234 gives 1666 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 16663196 and 16663205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18474 + ... + 19354.

Almost surely, 2^16663234 is an apocalyptic number.

16663234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16663234 is a deficient number, since it is larger than the sum of its proper divisors (12596234).

16663234 is a wasteful number, since it uses less digits than its factorization.

16663234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090 (or 1083 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 16663234 is about 4082.0624688998. The cubic root of 16663234 is about 255.4189396948.

Adding to 16663234 its reverse (43236661), we get a palindrome (59899895).

It can be divided in two parts, 1666 and 3234, that added together give a square (4900 = 70²).

The spelling of 16663234 in words is "sixteen million, six hundred sixty-three thousand, two hundred thirty-four".