16641332 has 6 divisors (see below), whose sum is σ = 29122338. Its totient is φ = 8320664.

The previous prime is 16641319. The next prime is 16641343. The reversal of 16641332 is 23314661.

It can be written as a sum of positive squares in only one way, i.e., 16613776 + 27556 = 4076^2 + 166^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2080163 + ... + 2080170.

It is an arithmetic number, because the mean of its divisors is an integer number (4853723).

Almost surely, 2^16641332 is an apocalyptic number.

It is an amenable number.

16641332 is a deficient number, since it is larger than the sum of its proper divisors (12481006).

16641332 is a wasteful number, since it uses less digits than its factorization.

16641332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160337 (or 4160335 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 16641332 is about 4079.3788742896. The cubic root of 16641332 is about 255.3069838686.

Adding to 16641332 its reverse (23314661), we get a palindrome (39955993).

It can be divided in two parts, 166413 and 32, that multiplied together give a triangular number (5325216 = T₃₂₆₃).

The spelling of 16641332 in words is "sixteen million, six hundred forty-one thousand, three hundred thirty-two".