216441624232 has 8 divisors (see below), whose sum is σ = 405828045450. Its totient is φ = 108220812112.

The previous prime is 216441624197. The next prime is 216441624241. The reversal of 216441624232 is 232426144612.

It can be written as a sum of positive squares in only one way, i.e., 213956202916 + 2485421316 = 462554^2 + 49854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 216441624191 and 216441624200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13527601507 + ... + 13527601522.

Almost surely, 2^216441624232 is an apocalyptic number.

It is an amenable number.

216441624232 is a deficient number, since it is larger than the sum of its proper divisors (189386421218).

216441624232 is a wasteful number, since it uses less digits than its factorization.

216441624232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27055203035 (or 27055203031 counting only the distinct ones).

The product of its digits is 110592, while the sum is 37.

Adding to 216441624232 its reverse (232426144612), we get a palindrome (448867768844).

The spelling of 216441624232 in words is "two hundred sixteen billion, four hundred forty-one million, six hundred twenty-four thousand, two hundred thirty-two".