11055543120 has 80 divisors (see below), whose sum is σ = 38080211520. Its totient is φ = 2948144256.

The previous prime is 11055543089. The next prime is 11055543137. The reversal of 11055543120 is 2134555011.

11055543120 is a `hidden beast` number, since 1 + 105 + 5 + 543 + 12 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2556994 + ... + 2561313.

It is an arithmetic number, because the mean of its divisors is an integer number (476002644).

Almost surely, 2^11055543120 is an apocalyptic number.

11055543120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11055543120 is an abundant number, since it is smaller than the sum of its proper divisors (27024668400).

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

11055543120 is a wasteful number, since it uses less digits than its factorization.

11055543120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5118329 (or 5118317 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 11055543120 in words is "eleven billion, fifty-five million, five hundred forty-three thousand, one hundred twenty".