111583648128 has 64 divisors (see below), whose sum is σ = 300817926720. Its totient is φ = 36639398400.

The previous prime is 111583648079. The next prime is 111583648129. The reversal of 111583648128 is 821846385111.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111583648129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142798 + ... + 2194253.

It is an arithmetic number, because the mean of its divisors is an integer number (4700280105).

Almost surely, 2^111583648128 is an apocalyptic number.

It is an amenable number.

111583648128 is an abundant number, since it is smaller than the sum of its proper divisors (189234278592).

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

111583648128 is an equidigital number, since it uses as much as digits as its factorization.

111583648128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337135 (or 4337123 counting only the distinct ones).

The product of its digits is 368640, while the sum is 48.

The spelling of 111583648128 in words is "one hundred eleven billion, five hundred eighty-three million, six hundred forty-eight thousand, one hundred twenty-eight".