260566506 has 48 divisors (see below), whose sum is σ = 583884288. Its totient is φ = 83916000.

The previous prime is 260566499. The next prime is 260566529. The reversal of 260566506 is 605665062.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99271 + ... + 101861.

It is an arithmetic number, because the mean of its divisors is an integer number (12164256).

Almost surely, 2^260566506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260566506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291942144).

260566506 is an abundant number, since it is smaller than the sum of its proper divisors (323317782).

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

260566506 is a wasteful number, since it uses less digits than its factorization.

260566506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787 (or 2784 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 260566506 is about 16142.0725435119. The cubic root of 260566506 is about 638.7136483590.

The spelling of 260566506 in words is "two hundred sixty million, five hundred sixty-six thousand, five hundred six".