11512345164216 has 32 divisors (see below), whose sum is σ = 30994775442960. Its totient is φ = 3542260050432.

The previous prime is 11512345164179. The next prime is 11512345164379. The reversal of 11512345164216 is 61246154321511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18449270785 + ... + 18449271408.

Almost surely, 2^{11512345164216} is an apocalyptic number.

It is an amenable number.

11512345164216 is an abundant number, since it is smaller than the sum of its proper divisors (19482430278744).

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

11512345164216 is a wasteful number, since it uses less digits than its factorization.

11512345164216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36898542215 (or 36898542211 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

Adding to 11512345164216 its reverse (61246154321511), we get a palindrome (72758499485727).

The spelling of 11512345164216 in words is "eleven trillion, five hundred twelve billion, three hundred forty-five million, one hundred sixty-four thousand, two hundred sixteen".