266513361210 has 40 divisors (see below), whose sum is σ = 716624817876. Its totient is φ = 71070229440.

The previous prime is 266513361193. The next prime is 266513361211. The reversal of 266513361210 is 12163315662.

266513361210 is a `hidden beast` number, since 2 + 6 + 6 + 5 + 1 + 33 + 612 + 1 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 261573942249 + 4939418961 = 511443^2 + 70281^2 .

It is not an unprimeable number, because it can be changed into a prime (266513361211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 164513611 + ... + 164515230.

Almost surely, 2^266513361210 is an apocalyptic number.

266513361210 is an abundant number, since it is smaller than the sum of its proper divisors (450111456666).

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

266513361210 is a wasteful number, since it uses less digits than its factorization.

266513361210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329028860 (or 329028851 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

Adding to 266513361210 its reverse (12163315662), we get a palindrome (278676676872).

The spelling of 266513361210 in words is "two hundred sixty-six billion, five hundred thirteen million, three hundred sixty-one thousand, two hundred ten".