11115004545 has 32 divisors (see below), whose sum is σ = 19816070400. Its totient is φ = 5911183872.

The previous prime is 11115004543. The next prime is 11115004547. The reversal of 11115004545 is 54540051111.

11115004545 is a `hidden beast` number, since 1 + 1 + 115 + 0 + 0 + 4 + 545 = 666.

It is an interprime number because it is at equal distance from previous prime (11115004543) and next prime (11115004547).

It is not a de Polignac number, because 11115004545 - 2¹ = 11115004543 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (11115004543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68965 + ... + 164274.

It is an arithmetic number, because the mean of its divisors is an integer number (619252200).

Almost surely, 2^11115004545 is an apocalyptic number.

11115004545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11115004545 is a deficient number, since it is larger than the sum of its proper divisors (8701065855).

11115004545 is a wasteful number, since it uses less digits than its factorization.

11115004545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233606 (or 233600 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 11115004545 its reverse (54540051111), we get a palindrome (65655055656).

The spelling of 11115004545 in words is "eleven billion, one hundred fifteen million, four thousand, five hundred forty-five".