111455434400 has 72 divisors (see below), whose sum is σ = 272170759644. Its totient is φ = 44569036800.

The previous prime is 111455434393. The next prime is 111455434403. The reversal of 111455434400 is 4434554111.

It can be written as a sum of positive squares in 6 ways, for example, as 63127567504 + 48327866896 = 251252^2 + 219836^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (111455434403) 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 11 ways as a sum of consecutive naturals, for example, 2967740 + ... + 3005060.

Almost surely, 2^111455434400 is an apocalyptic number.

111455434400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111455434400 is an abundant number, since it is smaller than the sum of its proper divisors (160715325244).

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

111455434400 is a wasteful number, since it uses less digits than its factorization.

111455434400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41074 (or 41061 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 111455434400 its reverse (4434554111), we get a palindrome (115889988511).

The spelling of 111455434400 in words is "one hundred eleven billion, four hundred fifty-five million, four hundred thirty-four thousand, four hundred".