266284072322240 has 224 divisors, whose sum is σ = 748560956056704. Its totient is φ = 88316426649600.

The previous prime is 266284072322231. The next prime is 266284072322243. The reversal of 266284072322240 is 42223270482662.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (266284072322243) 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, 5052440 + ... + 23624040.

It is an arithmetic number, because the mean of its divisors is an integer number (3341789982396).

Almost surely, 2^{266284072322240} is an apocalyptic number.

266284072322240 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 266284072322240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374280478028352).

266284072322240 is an abundant number, since it is smaller than the sum of its proper divisors (482276883734464).

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

266284072322240 is a wasteful number, since it uses less digits than its factorization.

266284072322240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18571835 (or 18571825 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 50.

The spelling of 266284072322240 in words is "two hundred sixty-six trillion, two hundred eighty-four billion, seventy-two million, three hundred twenty-two thousand, two hundred forty".