1115155166216 has 64 divisors (see below), whose sum is σ = 2575238265600. Its totient is φ = 440851154688.

The previous prime is 1115155166149. The next prime is 1115155166297. The reversal of 1115155166216 is 6126615515111.

It is a happy 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, 504341 + ... + 1576283.

It is an arithmetic number, because the mean of its divisors is an integer number (40238097900).

Almost surely, 2^{1115155166216} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115155166216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287619132800).

1115155166216 is an abundant number, since it is smaller than the sum of its proper divisors (1460083099384).

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

1115155166216 is a wasteful number, since it uses less digits than its factorization.

1115155166216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073398 (or 1073394 counting only the distinct ones).

The product of its digits is 54000, while the sum is 41.

The spelling of 1115155166216 in words is "one trillion, one hundred fifteen billion, one hundred fifty-five million, one hundred sixty-six thousand, two hundred sixteen".