22154534303513 has 4 divisors (see below), whose sum is σ = 22458021074868. Its totient is φ = 21851047532160.

The previous prime is 22154534303509. The next prime is 22154534303537. The reversal of 22154534303513 is 31530343545122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14519856903049 + 7634677400464 = 3810493^2 + 2763092^2 .

It is a cyclic number.

It is not a de Polignac number, because 22154534303513 - 2² = 22154534303509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22154534303593) 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 3 ways as a sum of consecutive naturals, for example, 151743385568 + ... + 151743385713.

It is an arithmetic number, because the mean of its divisors is an integer number (5614505268717).

Almost surely, 2^{22154534303513} is an apocalyptic number.

It is an amenable number.

22154534303513 is a deficient number, since it is larger than the sum of its proper divisors (303486771355).

22154534303513 is an equidigital number, since it uses as much as digits as its factorization.

22154534303513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303486771354.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 22154534303513 its reverse (31530343545122), we get a palindrome (53684877848635).

The spelling of 22154534303513 in words is "twenty-two trillion, one hundred fifty-four billion, five hundred thirty-four million, three hundred three thousand, five hundred thirteen".