111541360553 has 16 divisors (see below), whose sum is σ = 130160400000. Its totient is φ = 95545867536.

The previous prime is 111541360529. The next prime is 111541360583. The reversal of 111541360553 is 355063145111.

It is not a de Polignac number, because 111541360553 - 2¹⁰ = 111541359529 is a prime.

It is a super-2 number, since 2×111541360553² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111541360583) 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 15 ways as a sum of consecutive naturals, for example, 438623 + ... + 644571.

It is an arithmetic number, because the mean of its divisors is an integer number (8135025000).

Almost surely, 2^111541360553 is an apocalyptic number.

It is an amenable number.

111541360553 is a deficient number, since it is larger than the sum of its proper divisors (18619039447).

111541360553 is an equidigital number, since it uses as much as digits as its factorization.

111541360553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207549 (or 207535 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 111541360553 in words is "one hundred eleven billion, five hundred forty-one million, three hundred sixty thousand, five hundred fifty-three".