111344206545 has 96 divisors (see below), whose sum is σ = 227111713920. Its totient is φ = 49750087680.

The previous prime is 111344206541. The next prime is 111344206559. The reversal of 111344206545 is 545602443111.

111344206545 is a `hidden beast` number, since 1 + 1 + 134 + 420 + 65 + 45 = 666.

It is not a de Polignac number, because 111344206545 - 2² = 111344206541 is a prime.

It is a super-2 number, since 2×111344206545² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111344206541) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3969289 + ... + 3997241.

It is an arithmetic number, because the mean of its divisors is an integer number (2365747020).

Almost surely, 2^111344206545 is an apocalyptic number.

111344206545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111344206545 is an abundant number, since it is smaller than the sum of its proper divisors (115767507375).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111344206545 is a wasteful number, since it uses less digits than its factorization.

111344206545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28607 (or 28604 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 111344206545 its reverse (545602443111), we get a palindrome (656946649656).

The spelling of 111344206545 in words is "one hundred eleven billion, three hundred forty-four million, two hundred six thousand, five hundred forty-five".