11155565450 has 24 divisors (see below), whose sum is σ = 21418688640. Its totient is φ = 4318282800.

The previous prime is 11155565429. The next prime is 11155565489. The reversal of 11155565450 is 5456555111.

11155565450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3597020 + ... + 3600119.

It is an arithmetic number, because the mean of its divisors is an integer number (892445360).

Almost surely, 2^11155565450 is an apocalyptic number.

11155565450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11155565450 is a deficient number, since it is larger than the sum of its proper divisors (10263123190).

11155565450 is a wasteful number, since it uses less digits than its factorization.

11155565450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7197182 (or 7197177 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 38.

The spelling of 11155565450 in words is "eleven billion, one hundred fifty-five million, five hundred sixty-five thousand, four hundred fifty".