13644535453111 has 2 divisors, whose sum is σ = 13644535453112. Its totient is φ = 13644535453110.

The previous prime is 13644535453049. The next prime is 13644535453123. The reversal of 13644535453111 is 11135453544631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13644535453111 - 2¹³ = 13644535444919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13644535453411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6822267726555 + 6822267726556.

It is an arithmetic number, because the mean of its divisors is an integer number (6822267726556).

Almost surely, 2^{13644535453111} is an apocalyptic number.

13644535453111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13644535453111 is an equidigital number, since it uses as much as digits as its factorization.

13644535453111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 46.

Adding to 13644535453111 its reverse (11135453544631), we get a palindrome (24779988997742).

The spelling of 13644535453111 in words is "thirteen trillion, six hundred forty-four billion, five hundred thirty-five million, four hundred fifty-three thousand, one hundred eleven".