111309695640 has 384 divisors, whose sum is σ = 439207070400. Its totient is φ = 24908083200.

The previous prime is 111309695597. The next prime is 111309695711. The reversal of 111309695640 is 46596903111.

111309695640 is a `hidden beast` number, since 11 + 13 + 0 + 9 + 69 + 564 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1666080 + ... + 1731600.

Almost surely, 2^111309695640 is an apocalyptic number.

111309695640 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 111309695640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219603535200).

111309695640 is an abundant number, since it is smaller than the sum of its proper divisors (327897374760).

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

111309695640 is a wasteful number, since it uses less digits than its factorization.

111309695640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65576 (or 65555 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 111309695640 in words is "one hundred eleven billion, three hundred nine million, six hundred ninety-five thousand, six hundred forty".