266022342720 has 224 divisors, whose sum is σ = 944092396800. Its totient is φ = 70514122752.

The previous prime is 266022342697. The next prime is 266022342823. The reversal of 266022342720 is 27243220662.

266022342720 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 223 + 427 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1350696 + ... + 1535064.

It is an arithmetic number, because the mean of its divisors is an integer number (4214698200).

Almost surely, 2^266022342720 is an apocalyptic number.

266022342720 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 266022342720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472046198400).

266022342720 is an abundant number, since it is smaller than the sum of its proper divisors (678070054080).

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

266022342720 is a wasteful number, since it uses less digits than its factorization.

266022342720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184562 (or 184546 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 266022342720 in words is "two hundred sixty-six billion, twenty-two million, three hundred forty-two thousand, seven hundred twenty".