22013544505 has 8 divisors (see below), whose sum is σ = 26420444424. Its totient is φ = 17608041600.

The previous prime is 22013544503. The next prime is 22013544517. The reversal of 22013544505 is 50544531022.

It can be written as a sum of positive squares in 4 ways, for example, as 5014339344 + 16999205161 = 70812^2 + 130381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22013544505 - 2¹ = 22013544503 is a prime.

It is a super-2 number, since 2×22013544505² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22013544503) 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 7 ways as a sum of consecutive naturals, for example, 314266 + ... + 377875.

It is an arithmetic number, because the mean of its divisors is an integer number (3302555553).

Almost surely, 2^22013544505 is an apocalyptic number.

It is an amenable number.

22013544505 is a deficient number, since it is larger than the sum of its proper divisors (4406899919).

22013544505 is an equidigital number, since it uses as much as digits as its factorization.

22013544505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698507.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 22013544505 in words is "twenty-two billion, thirteen million, five hundred forty-four thousand, five hundred five".