216043651234 has 8 divisors (see below), whose sum is σ = 341121554640. Its totient is φ = 102336466356.

The previous prime is 216043651181. The next prime is 216043651279. The reversal of 216043651234 is 432156340612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 216043651193 and 216043651202.

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, 2842679584 + ... + 2842679659.

It is an arithmetic number, because the mean of its divisors is an integer number (42640194330).

Almost surely, 2^216043651234 is an apocalyptic number.

216043651234 is a deficient number, since it is larger than the sum of its proper divisors (125077903406).

216043651234 is a wasteful number, since it uses less digits than its factorization.

216043651234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685359264.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 216043651234 its reverse (432156340612), we get a palindrome (648199991846).

The spelling of 216043651234 in words is "two hundred sixteen billion, forty-three million, six hundred fifty-one thousand, two hundred thirty-four".