810658116 has 18 divisors (see below), whose sum is σ = 2049163662. Its totient is φ = 270219360.

The previous prime is 810658103. The next prime is 810658117. The reversal of 810658116 is 611856018.

It can be written as a sum of positive squares in only one way, i.e., 495240516 + 315417600 = 22254^2 + 17760^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 22518281 = 810658116 / (8 + 1 + 0 + 6 + 5 + 8 + 1 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (810658117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11259105 + ... + 11259176.

Almost surely, 2^810658116 is an apocalyptic number.

It is an amenable number.

810658116 is an abundant number, since it is smaller than the sum of its proper divisors (1238505546).

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

810658116 is a wasteful number, since it uses less digits than its factorization.

810658116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22518291 (or 22518286 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 810658116 is about 28472.0585135673. The cubic root of 810658116 is about 932.4221426322.

The spelling of 810658116 in words is "eight hundred ten million, six hundred fifty-eight thousand, one hundred sixteen".