260664576 has 72 divisors (see below), whose sum is σ = 697772544. Its totient is φ = 86384640.

The previous prime is 260664541. The next prime is 260664601. The reversal of 260664576 is 675466062.

It is a super-3 number, since 3×260664576³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145800 + ... + 147576.

Almost surely, 2^260664576 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 260664576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348886272).

260664576 is an abundant number, since it is smaller than the sum of its proper divisors (437107968).

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

260664576 is a wasteful number, since it uses less digits than its factorization.

260664576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 260664576 is about 16145.1099717531. The cubic root of 260664576 is about 638.7937696705.

The spelling of 260664576 in words is "two hundred sixty million, six hundred sixty-four thousand, five hundred seventy-six".