16163003216 has 20 divisors (see below), whose sum is σ = 31388155092. Its totient is φ = 8062834176.

The previous prime is 16163003179. The next prime is 16163003267. The reversal of 16163003216 is 61230036161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1571329600 + 14591673616 = 39640^2 + 120796^2 .

It is a super-2 number, since 2×16163003216² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159571 + ... + 1173426.

Almost surely, 2^16163003216 is an apocalyptic number.

16163003216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16163003216 is a deficient number, since it is larger than the sum of its proper divisors (15225151876).

16163003216 is a wasteful number, since it uses less digits than its factorization.

16163003216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333438 (or 2333432 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 16163003216 its reverse (61230036161), we get a palindrome (77393039377).

The spelling of 16163003216 in words is "sixteen billion, one hundred sixty-three million, three thousand, two hundred sixteen".