266053621410 has 192 divisors, whose sum is σ = 722122128000. Its totient is φ = 70478553600.

The previous prime is 266053621387. The next prime is 266053621417. The reversal of 266053621410 is 14126350662.

266053621410 is a `hidden beast` number, since 2 + 6 + 60 + 536 + 21 + 41 + 0 = 666.

It is a super-2 number, since 2×266053621410² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266053621417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 379534060 + ... + 379534760.

It is an arithmetic number, because the mean of its divisors is an integer number (3761052750).

Almost surely, 2^266053621410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266053621410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361061064000).

266053621410 is an abundant number, since it is smaller than the sum of its proper divisors (456068506590).

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

266053621410 is a wasteful number, since it uses less digits than its factorization.

266053621410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 266053621410 in words is "two hundred sixty-six billion, fifty-three million, six hundred twenty-one thousand, four hundred ten".