216606210006 has 32 divisors (see below), whose sum is σ = 434610576000. Its totient is φ = 71969135040.

The previous prime is 216606209987. The next prime is 216606210011. The reversal of 216606210006 is 600012606612.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14150545 + ... + 14165843.

It is an arithmetic number, because the mean of its divisors is an integer number (13581580500).

Almost surely, 2^216606210006 is an apocalyptic number.

216606210006 is an abundant number, since it is smaller than the sum of its proper divisors (218004365994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216606210006 is a wasteful number, since it uses less digits than its factorization.

216606210006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22764.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 216606210006 its reverse (600012606612), we get a palindrome (816618816618).

The spelling of 216606210006 in words is "two hundred sixteen billion, six hundred six million, two hundred ten thousand, six".