16505216106 has 64 divisors (see below), whose sum is σ = 34344468480. Its totient is φ = 5282392320.

The previous prime is 16505216041. The next prime is 16505216111. The reversal of 16505216106 is 60161250561.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17959515 + ... + 17960433.

It is an arithmetic number, because the mean of its divisors is an integer number (536632320).

Almost surely, 2^16505216106 is an apocalyptic number.

16505216106 is an abundant number, since it is smaller than the sum of its proper divisors (17839252374).

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

16505216106 is a wasteful number, since it uses less digits than its factorization.

16505216106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611.

The product of its (nonzero) digits is 10800, while the sum is 33.

Adding to 16505216106 its reverse (60161250561), we get a palindrome (76666466667).

The spelling of 16505216106 in words is "sixteen billion, five hundred five million, two hundred sixteen thousand, one hundred six".