216063172 has 12 divisors (see below), whose sum is σ = 407196076. Its totient is φ = 99721440.

The previous prime is 216063161. The next prime is 216063187. The reversal of 216063172 is 271360612.

It can be written as a sum of positive squares in 2 ways, for example, as 18267076 + 197796096 = 4274^2 + 14064^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 216063172.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2077479 + ... + 2077582.

Almost surely, 2^216063172 is an apocalyptic number.

It is an amenable number.

216063172 is a deficient number, since it is larger than the sum of its proper divisors (191132904).

216063172 is a wasteful number, since it uses less digits than its factorization.

216063172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155078 (or 4155076 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 216063172 is about 14699.0874546687. The cubic root of 216063172 is about 600.0584868912.

The spelling of 216063172 in words is "two hundred sixteen million, sixty-three thousand, one hundred seventy-two".