1165610610 has 96 divisors (see below), whose sum is σ = 3231025200. Its totient is φ = 290525184.

The previous prime is 1165610603. The next prime is 1165610647. The reversal of 1165610610 is 160165611.

1165610610 is a `hidden beast` number, since 1 + 1 + 656 + 1 + 0 + 6 + 1 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 102394161 + 1063216449 = 10119^2 + 32607^2 .

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 225414 + ... + 230526.

Almost surely, 2^1165610610 is an apocalyptic number.

1165610610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165610610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615512600).

1165610610 is an abundant number, since it is smaller than the sum of its proper divisors (2065414590).

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

1165610610 is a wasteful number, since it uses less digits than its factorization.

1165610610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292 (or 5289 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1165610610 is about 34141.0399665857. The cubic root of 1165610610 is about 1052.4088640214.

The spelling of 1165610610 in words is "one billion, one hundred sixty-five million, six hundred ten thousand, six hundred ten".