216040612 has 24 divisors (see below), whose sum is σ = 391381760. Its totient is φ = 104237280.

The previous prime is 216040609. The next prime is 216040619.

216040612 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (216040619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44698 + ... + 49294.

Almost surely, 2^216040612 is an apocalyptic number.

It is an amenable number.

216040612 is a deficient number, since it is larger than the sum of its proper divisors (175341148).

216040612 is a wasteful number, since it uses less digits than its factorization.

216040612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011 (or 5009 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 216040612 is about 14698.3200400590. The cubic root of 216040612 is about 600.0376013472.

The spelling of 216040612 in words is "two hundred sixteen million, forty thousand, six hundred twelve".