266325215232 has 192 divisors, whose sum is σ = 741984122880. Its totient is φ = 84790886400.

The previous prime is 266325215213. The next prime is 266325215279. The reversal of 266325215232 is 232512523662.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×266325215232² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173954307 + ... + 173955837.

It is an arithmetic number, because the mean of its divisors is an integer number (3864500640).

Almost surely, 2^266325215232 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 266325215232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370992061440).

266325215232 is an abundant number, since it is smaller than the sum of its proper divisors (475658907648).

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

266325215232 is a wasteful number, since it uses less digits than its factorization.

266325215232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810 (or 2790 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

Adding to 266325215232 its reverse (232512523662), we get a palindrome (498837738894).

The spelling of 266325215232 in words is "two hundred sixty-six billion, three hundred twenty-five million, two hundred fifteen thousand, two hundred thirty-two".