216310442242 has 16 divisors (see below), whose sum is σ = 341781897600. Its totient is φ = 102391112880.

The previous prime is 216310442219. The next prime is 216310442263. The reversal of 216310442242 is 242244013612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1937434 + ... + 2046037.

It is an arithmetic number, because the mean of its divisors is an integer number (21361368600).

Almost surely, 2^216310442242 is an apocalyptic number.

216310442242 is a deficient number, since it is larger than the sum of its proper divisors (125471455358).

216310442242 is a wasteful number, since it uses less digits than its factorization.

216310442242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984921.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 216310442242 its reverse (242244013612), we get a palindrome (458554455854).

The spelling of 216310442242 in words is "two hundred sixteen billion, three hundred ten million, four hundred forty-two thousand, two hundred forty-two".