11553854081 has 16 divisors (see below), whose sum is σ = 14422302720. Its totient is φ = 8992067280.

The previous prime is 11553854071. The next prime is 11553854089. The reversal of 11553854081 is 18045835511.

It is not a de Polignac number, because 11553854081 - 2³⁰ = 10480112257 is a prime.

It is a super-2 number, since 2×11553854081² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11553854089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27041 + ... + 154398.

It is an arithmetic number, because the mean of its divisors is an integer number (901393920).

Almost surely, 2^11553854081 is an apocalyptic number.

11553854081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11553854081 is a deficient number, since it is larger than the sum of its proper divisors (2868448639).

11553854081 is a wasteful number, since it uses less digits than its factorization.

11553854081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182284.

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 11553854081 in words is "eleven billion, five hundred fifty-three million, eight hundred fifty-four thousand, eighty-one".