266605456064 has 112 divisors (see below), whose sum is σ = 565164158976. Its totient is φ = 124490572800.

The previous prime is 266605456049. The next prime is 266605456123. The reversal of 266605456064 is 460654506662.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29813834 + ... + 29822774.

Almost surely, 2^266605456064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266605456064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282582079488).

266605456064 is an abundant number, since it is smaller than the sum of its proper divisors (298558702912).

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

266605456064 is a wasteful number, since it uses less digits than its factorization.

266605456064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9454 (or 9444 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 266605456064 in words is "two hundred sixty-six billion, six hundred five million, four hundred fifty-six thousand, sixty-four".