11153502819045 has 18 divisors (see below), whose sum is σ = 19332777052134. Its totient is φ = 5948522888400.

The previous prime is 11153502819029. The next prime is 11153502819079. The reversal of 11153502819045 is 54091820535111.

11153502819045 is a `hidden beast` number, since 1 + 1 + 1 + 53 + 502 + 8 + 1 + 90 + 4 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8922802255236 + 2230700563809 = 2987106^2 + 1493553^2 .

It is not a de Polignac number, because 11153502819045 - 2⁴ = 11153502819029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22154370 + ... + 22652220.

It is an arithmetic number, because the mean of its divisors is an integer number (1074043169563).

Almost surely, 2^{11153502819045} is an apocalyptic number.

11153502819045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11153502819045 is a deficient number, since it is larger than the sum of its proper divisors (8179274233089).

11153502819045 is an frugal number, since it uses more digits than its factorization.

11153502819045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995713 (or 497859 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 45.

Multiplying 11153502819045 by its sum of digits (45), we get a square (501907626857025 = 22403295²).

11153502819045 divided by its sum of digits (45) gives a square (247855618201 = 497851²).

The spelling of 11153502819045 in words is "eleven trillion, one hundred fifty-three billion, five hundred two million, eight hundred nineteen thousand, forty-five".