266034560 has 256 divisors, whose sum is σ = 761425920. Its totient is φ = 87859200.

The previous prime is 266034539. The next prime is 266034569. The reversal of 266034560 is 65430662.

266034560 = 171² + 172² + ... + 929².

It is a super-2 number, since 2×266034560² = 141548774228787200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266034569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5019494 + ... + 5019546.

It is an arithmetic number, because the mean of its divisors is an integer number (2974320).

Almost surely, 2^266034560 is an apocalyptic number.

266034560 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 266034560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380712960).

266034560 is an abundant number, since it is smaller than the sum of its proper divisors (495391360).

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

266034560 is a wasteful number, since it uses less digits than its factorization.

266034560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 266034560 is about 16310.5659006670. The cubic root of 266034560 is about 643.1506104663.

The spelling of 266034560 in words is "two hundred sixty-six million, thirty-four thousand, five hundred sixty".