216329449898 has 8 divisors (see below), whose sum is σ = 324560725092. Its totient is φ = 108142541536.

The previous prime is 216329449859. The next prime is 216329449909. The reversal of 216329449898 is 898944923612.

It can be written as a sum of positive squares in 2 ways, for example, as 208736593129 + 7592856769 = 456877^2 + 87137^2 .

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

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, 11079515 + ... + 11099022.

Almost surely, 2^216329449898 is an apocalyptic number.

216329449898 is a deficient number, since it is larger than the sum of its proper divisors (108231275194).

216329449898 is a wasteful number, since it uses less digits than its factorization.

216329449898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22183416.

The product of its digits is 53747712, while the sum is 65.

The spelling of 216329449898 in words is "two hundred sixteen billion, three hundred twenty-nine million, four hundred forty-nine thousand, eight hundred ninety-eight".