266504460000 has 240 divisors, whose sum is σ = 875160771408. Its totient is φ = 70988800000.

The previous prime is 266504459987. The next prime is 266504460011. The reversal of 266504460000 is 64405662.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70858120 + ... + 70861880.

Almost surely, 2^266504460000 is an apocalyptic number.

266504460000 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 266504460000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437580385704).

266504460000 is an abundant number, since it is smaller than the sum of its proper divisors (608656311408).

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

266504460000 is a wasteful number, since it uses less digits than its factorization.

266504460000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975 (or 4952 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 266504460000 its reverse (64405662), we get a palindrome (266568865662).

The spelling of 266504460000 in words is "two hundred sixty-six billion, five hundred four million, four hundred sixty thousand".