11018185128 has 48 divisors (see below), whose sum is σ = 29936930400. Its totient is φ = 3660911520.

The previous prime is 11018185097. The next prime is 11018185147. The reversal of 11018185128 is 82158181011.

It is a happy number.

11018185128 is a `hidden beast` number, since 110 + 18 + 18 + 512 + 8 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 11018185092 and 11018185101.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223638 + ... + 268421.

It is an arithmetic number, because the mean of its divisors is an integer number (623686050).

Almost surely, 2^11018185128 is an apocalyptic number.

11018185128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11018185128 is an abundant number, since it is smaller than the sum of its proper divisors (18918745272).

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

11018185128 is a wasteful number, since it uses less digits than its factorization.

11018185128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492382 (or 492375 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 36.

The spelling of 11018185128 in words is "eleven billion, eighteen million, one hundred eighty-five thousand, one hundred twenty-eight".