266663420245000 has 320 divisors, whose sum is σ = 674177875272000. Its totient is φ = 98547052032000.

The previous prime is 266663420244979. The next prime is 266663420245051. The reversal of 266663420245000 is 542024366662.

It is a super-2 number, since 2×266663420245000² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 616998979 + ... + 617431021.

It is an arithmetic number, because the mean of its divisors is an integer number (2106805860225).

Almost surely, 2^{266663420245000} is an apocalyptic number.

266663420245000 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 266663420245000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337088937636000).

266663420245000 is an abundant number, since it is smaller than the sum of its proper divisors (407514455027000).

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

266663420245000 is a wasteful number, since it uses less digits than its factorization.

266663420245000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432250 (or 432231 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 266663420245000 in words is "two hundred sixty-six trillion, six hundred sixty-three billion, four hundred twenty million, two hundred forty-five thousand".