266996404080 has 480 divisors, whose sum is σ = 1080203005440. Its totient is φ = 57734830080.

The previous prime is 266996404067. The next prime is 266996404111. The reversal of 266996404080 is 80404699662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 90108679 + ... + 90111641.

It is an arithmetic number, because the mean of its divisors is an integer number (2250422928).

Almost surely, 2^266996404080 is an apocalyptic number.

266996404080 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 266996404080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540101502720).

266996404080 is an abundant number, since it is smaller than the sum of its proper divisors (813206601360).

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

266996404080 is a wasteful number, since it uses less digits than its factorization.

266996404080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 266996404080 in words is "two hundred sixty-six billion, nine hundred ninety-six million, four hundred four thousand, eighty".