266180468320 has 192 divisors, whose sum is σ = 729468923904. Its totient is φ = 90975836160.

The previous prime is 266180468243. The next prime is 266180468321. The reversal of 266180468320 is 23864081662.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266180468321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1393299 + ... + 1572781.

It is an arithmetic number, because the mean of its divisors is an integer number (3799317312).

Almost surely, 2^266180468320 is an apocalyptic number.

266180468320 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 266180468320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364734461952).

266180468320 is an abundant number, since it is smaller than the sum of its proper divisors (463288455584).

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

266180468320 is a wasteful number, since it uses less digits than its factorization.

266180468320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179565 (or 179557 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 266180468320 in words is "two hundred sixty-six billion, one hundred eighty million, four hundred sixty-eight thousand, three hundred twenty".