261160768 has 84 divisors (see below), whose sum is σ = 594616032. Its totient is φ = 112654080.

The previous prime is 261160751. The next prime is 261160789. The reversal of 261160768 is 867061162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2056321 + ... + 2056447.

Almost surely, 2^261160768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 261160768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297308016).

261160768 is an abundant number, since it is smaller than the sum of its proper divisors (333455264).

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

261160768 is a wasteful number, since it uses less digits than its factorization.

261160768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 261160768 is about 16160.4693001163. The cubic root of 261160768 is about 639.1988412696.

The spelling of 261160768 in words is "two hundred sixty-one million, one hundred sixty thousand, seven hundred sixty-eight".