111453411440 has 40 divisors (see below), whose sum is σ = 296147637600. Its totient is φ = 38212598016.

The previous prime is 111453411439. The next prime is 111453411499. The reversal of 111453411440 is 44114354111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×111453411440² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99511415 + ... + 99512534.

It is an arithmetic number, because the mean of its divisors is an integer number (7403690940).

Almost surely, 2^111453411440 is an apocalyptic number.

111453411440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111453411440 is an abundant number, since it is smaller than the sum of its proper divisors (184694226160).

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

111453411440 is a wasteful number, since it uses less digits than its factorization.

111453411440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199023969 (or 199023963 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 111453411440 its reverse (44114354111), we get a palindrome (155567765551).

The spelling of 111453411440 in words is "one hundred eleven billion, four hundred fifty-three million, four hundred eleven thousand, four hundred forty".