916661343760 has 20 divisors (see below), whose sum is σ = 2131237624428. Its totient is φ = 366664537472.

The previous prime is 916661343733. The next prime is 916661343769. The reversal of 916661343760 is 67343166619.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 265909360896 + 650751982864 = 515664^2 + 806692^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 916661343698 and 916661343707.

It is not an unprimeable number, because it can be changed into a prime (916661343769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5729133319 + ... + 5729133478.

Almost surely, 2^916661343760 is an apocalyptic number.

It is an amenable number.

916661343760 is an abundant number, since it is smaller than the sum of its proper divisors (1214576280668).

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

916661343760 is a wasteful number, since it uses less digits than its factorization.

916661343760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458266810 (or 11458266804 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 916661343760 in words is "nine hundred sixteen billion, six hundred sixty-one million, three hundred forty-three thousand, seven hundred sixty".