116881785 has 24 divisors (see below), whose sum is σ = 210100800. Its totient is φ = 62336304.

The previous prime is 116881781. The next prime is 116881819. The reversal of 116881785 is 587188611.

It is not a de Polignac number, because 116881785 - 2² = 116881781 is a prime.

It is a super-2 number, since 2×116881785² = 27322703329572450, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 116881785.

It is not an unprimeable number, because it can be changed into a prime (116881781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46885 + ... + 49314.

It is an arithmetic number, because the mean of its divisors is an integer number (8754200).

Almost surely, 2^116881785 is an apocalyptic number.

116881785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116881785 is a deficient number, since it is larger than the sum of its proper divisors (93219015).

116881785 is an frugal number, since it uses more digits than its factorization.

116881785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96219 (or 96207 counting only the distinct ones).

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

The square root of 116881785 is about 10811.1879550769. The cubic root of 116881785 is about 488.9325436703.

The spelling of 116881785 in words is "one hundred sixteen million, eight hundred eighty-one thousand, seven hundred eighty-five".