111110640 has 160 divisors (see below), whose sum is σ = 369458496. Its totient is φ = 27525120.

The previous prime is 111110639. The next prime is 111110647. The reversal of 111110640 is 46011111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460920 + ... + 461160.

Almost surely, 2^111110640 is an apocalyptic number.

111110640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111110640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184729248).

111110640 is an abundant number, since it is smaller than the sum of its proper divisors (258347856).

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

111110640 is a wasteful number, since it uses less digits than its factorization.

111110640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 111110640 is about 10540.9031871088. The cubic root of 111110640 is about 480.7491773084.

Adding to 111110640 its reverse (46011111), we get a palindrome (157121751).

The spelling of 111110640 in words is "one hundred eleven million, one hundred ten thousand, six hundred forty".