11451161136 has 20 divisors (see below), whose sum is σ = 29582166392. Its totient is φ = 3817053696.

The previous prime is 11451161131. The next prime is 11451161149. The reversal of 11451161136 is 63116115411.

It is a super-2 number, since 2×11451161136² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11451161131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119282881 + ... + 119282976.

Almost surely, 2^11451161136 is an apocalyptic number.

11451161136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11451161136 is an abundant number, since it is smaller than the sum of its proper divisors (18131005256).

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

11451161136 is a wasteful number, since it uses less digits than its factorization.

11451161136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238565868 (or 238565862 counting only the distinct ones).

The product of its digits is 2160, while the sum is 30.

Adding to 11451161136 its reverse (63116115411), we get a palindrome (74567276547).

The spelling of 11451161136 in words is "eleven billion, four hundred fifty-one million, one hundred sixty-one thousand, one hundred thirty-six".