266958560 has 48 divisors (see below), whose sum is σ = 688029552. Its totient is φ = 97075200.

The previous prime is 266958557. The next prime is 266958563. The reversal of 266958560 is 65859662.

It is an interprime number because it is at equal distance from previous prime (266958557) and next prime (266958563).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266958563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 74081 + ... + 77600.

It is an arithmetic number, because the mean of its divisors is an integer number (14333949).

Almost surely, 2^266958560 is an apocalyptic number.

266958560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266958560 is an abundant number, since it is smaller than the sum of its proper divisors (421070992).

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

266958560 is a wasteful number, since it uses less digits than its factorization.

266958560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151707 (or 151699 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 266958560 is about 16338.8665457552. The cubic root of 266958560 is about 643.8943540292.

The spelling of 266958560 in words is "two hundred sixty-six million, nine hundred fifty-eight thousand, five hundred sixty".