111361665453 has 16 divisors (see below), whose sum is σ = 158859326400. Its totient is φ = 69180670080.

The previous prime is 111361665433. The next prime is 111361665511. The reversal of 111361665453 is 354566163111.

It is not a de Polignac number, because 111361665453 - 2⁸ = 111361665197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111361665413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16010568 + ... + 16017521.

It is an arithmetic number, because the mean of its divisors is an integer number (9928707900).

Almost surely, 2^111361665453 is an apocalyptic number.

It is an amenable number.

111361665453 is a deficient number, since it is larger than the sum of its proper divisors (47497660947).

111361665453 is a wasteful number, since it uses less digits than its factorization.

111361665453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32028172.

The product of its digits is 194400, while the sum is 42.

The spelling of 111361665453 in words is "one hundred eleven billion, three hundred sixty-one million, six hundred sixty-five thousand, four hundred fifty-three".