262666560 has 168 divisors, whose sum is σ = 903610080. Its totient is φ = 64616448.

The previous prime is 262666529. The next prime is 262666567. The reversal of 262666560 is 65666262.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (262666567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161431 + ... + 163049.

Almost surely, 2^262666560 is an apocalyptic number.

262666560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 262666560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451805040).

262666560 is an abundant number, since it is smaller than the sum of its proper divisors (640943520).

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

262666560 is a wasteful number, since it uses less digits than its factorization.

262666560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 262666560 is about 16206.9910840970. The cubic root of 262666560 is about 640.4249781567.

The spelling of 262666560 in words is "two hundred sixty-two million, six hundred sixty-six thousand, five hundred sixty".