116781588 has 240 divisors, whose sum is σ = 395501568. Its totient is φ = 29160000.

The previous prime is 116781547. The next prime is 116781589. The reversal of 116781588 is 885187611.

116781588 is a `hidden beast` number, since 1 + 1 + 67 + 8 + 1 + 588 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116781589) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 773313 + ... + 773463.

Almost surely, 2^116781588 is an apocalyptic number.

116781588 is a gapful number since it is divisible by the number (18) 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 116781588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197750784).

116781588 is an abundant number, since it is smaller than the sum of its proper divisors (278719980).

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

116781588 is a wasteful number, since it uses less digits than its factorization.

116781588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 205 counting only the distinct ones).

The product of its digits is 107520, while the sum is 45.

The square root of 116781588 is about 10806.5530119460. The cubic root of 116781588 is about 488.7927911288.

The spelling of 116781588 in words is "one hundred sixteen million, seven hundred eighty-one thousand, five hundred eighty-eight".