11215445334345 has 64 divisors (see below), whose sum is σ = 23777672970240. Its totient is φ = 4904145031104.

The previous prime is 11215445334341. The next prime is 11215445334383. The reversal of 11215445334345 is 54343354451211.

11215445334345 is a `hidden beast` number, since 1 + 1 + 2 + 154 + 453 + 3 + 4 + 3 + 45 = 666.

It is not a de Polignac number, because 11215445334345 - 2² = 11215445334341 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11215445334345.

It is not an unprimeable number, because it can be changed into a prime (11215445334341) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 257982529 + ... + 258025998.

It is an arithmetic number, because the mean of its divisors is an integer number (371526140160).

Almost surely, 2^{11215445334345} is an apocalyptic number.

11215445334345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11215445334345 is an abundant number, since it is smaller than the sum of its proper divisors (12562227635895).

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

11215445334345 is a wasteful number, since it uses less digits than its factorization.

11215445334345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516008571 (or 516008565 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

Adding to 11215445334345 its reverse (54343354451211), we get a palindrome (65558799785556).

The spelling of 11215445334345 in words is "eleven trillion, two hundred fifteen billion, four hundred forty-five million, three hundred thirty-four thousand, three hundred forty-five".