116440065 has 32 divisors (see below), whose sum is σ = 236578560. Its totient is φ = 53229312.

The previous prime is 116440063. The next prime is 116440081. The reversal of 116440065 is 560044611.

116440065 is a `hidden beast` number, since 11 + 644 + 0 + 0 + 6 + 5 = 666.

It is not a de Polignac number, because 116440065 - 2¹ = 116440063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (116440063) 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, 60664 + ... + 62553.

It is an arithmetic number, because the mean of its divisors is an integer number (7393080).

Almost surely, 2^116440065 is an apocalyptic number.

116440065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116440065 is an abundant number, since it is smaller than the sum of its proper divisors (120138495).

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

116440065 is a wasteful number, since it uses less digits than its factorization.

116440065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123238 (or 123232 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 116440065 is about 10790.7397800151. The cubic root of 116440065 is about 488.3158410127.

Adding to 116440065 its reverse (560044611), we get a palindrome (676484676).

The spelling of 116440065 in words is "one hundred sixteen million, four hundred forty thousand, sixty-five".