11156034816 has 108 divisors (see below), whose sum is σ = 33564262368. Its totient is φ = 3556979712.

The previous prime is 11156034811. The next prime is 11156034817. The reversal of 11156034816 is 61843065111.

It is a happy number.

11156034816 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 603 + 48 + 1 + 6 = 666.

It is a super-2 number, since 2×11156034816² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156034811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52270 + ... + 158253.

Almost surely, 2^11156034816 is an apocalyptic number.

11156034816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11156034816 is an abundant number, since it is smaller than the sum of its proper divisors (22408227552).

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

11156034816 is a wasteful number, since it uses less digits than its factorization.

11156034816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210568 (or 210551 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

Adding to 11156034816 its reverse (61843065111), we get a palindrome (72999099927).

The spelling of 11156034816 in words is "eleven billion, one hundred fifty-six million, thirty-four thousand, eight hundred sixteen".