216006340012 has 24 divisors (see below), whose sum is σ = 390617256960. Its totient is φ = 104408771280.

The previous prime is 216006339973. The next prime is 216006340019. The reversal of 216006340012 is 210043600612.

216006340012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216006340019) 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, 802312 + ... + 1037167.

It is an arithmetic number, because the mean of its divisors is an integer number (16275719040).

Almost surely, 2^216006340012 is an apocalyptic number.

It is an amenable number.

216006340012 is a deficient number, since it is larger than the sum of its proper divisors (174610916948).

216006340012 is a wasteful number, since it uses less digits than its factorization.

216006340012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840461 (or 1840459 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 216006340012 its reverse (210043600612), we get a palindrome (426049940624).

The spelling of 216006340012 in words is "two hundred sixteen billion, six million, three hundred forty thousand, twelve".