11456111215 has 8 divisors (see below), whose sum is σ = 14556000240. Its totient is φ = 8625777792.

The previous prime is 11456111203. The next prime is 11456111281. The reversal of 11456111215 is 51211165411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11456111215 - 2¹¹ = 11456109167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67388805 + ... + 67388974.

It is an arithmetic number, because the mean of its divisors is an integer number (1819500030).

Almost surely, 2^11456111215 is an apocalyptic number.

11456111215 is a deficient number, since it is larger than the sum of its proper divisors (3099889025).

11456111215 is a wasteful number, since it uses less digits than its factorization.

11456111215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134777801.

The product of its digits is 1200, while the sum is 28.

Adding to 11456111215 its reverse (51211165411), we get a palindrome (62667276626).

The spelling of 11456111215 in words is "eleven billion, four hundred fifty-six million, one hundred eleven thousand, two hundred fifteen".