111648880 has 40 divisors (see below), whose sum is σ = 296668512. Its totient is φ = 38279424.

The previous prime is 111648871. The next prime is 111648881. The reversal of 111648880 is 88846111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111648881) 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, 99127 + ... + 100246.

Almost surely, 2^111648880 is an apocalyptic number.

111648880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111648880 is an abundant number, since it is smaller than the sum of its proper divisors (185019632).

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

111648880 is a wasteful number, since it uses less digits than its factorization.

111648880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199393 (or 199387 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 37.

The square root of 111648880 is about 10566.4033615985. The cubic root of 111648880 is about 481.5242057960.

The spelling of 111648880 in words is "one hundred eleven million, six hundred forty-eight thousand, eight hundred eighty".