116645815 has 24 divisors (see below), whose sum is σ = 165703104. Its totient is φ = 78302400.

The previous prime is 116645813. The next prime is 116645821. The reversal of 116645815 is 518546611.

It is not a de Polignac number, because 116645815 - 2¹ = 116645813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116645813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450 + ... + 15280.

It is an arithmetic number, because the mean of its divisors is an integer number (6904296).

Almost surely, 2^116645815 is an apocalyptic number.

116645815 is a deficient number, since it is larger than the sum of its proper divisors (49057289).

116645815 is a wasteful number, since it uses less digits than its factorization.

116645815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14871 (or 14860 counting only the distinct ones).

The product of its digits is 28800, while the sum is 37.

The square root of 116645815 is about 10800.2692096077. The cubic root of 116645815 is about 488.6032903678.

The spelling of 116645815 in words is "one hundred sixteen million, six hundred forty-five thousand, eight hundred fifteen".