266861106360 has 160 divisors (see below), whose sum is σ = 916034391360. Its totient is φ = 69648816384.

The previous prime is 266861106349. The next prime is 266861106383. The reversal of 266861106360 is 63601168662.

266861106360 is a `hidden beast` number, since 2 + 6 + 6 + 8 + 6 + 1 + 1 + 0 + 636 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 723939 + ... + 1028498.

It is an arithmetic number, because the mean of its divisors is an integer number (5725214946).

Almost surely, 2^266861106360 is an apocalyptic number.

266861106360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266861106360 is an abundant number, since it is smaller than the sum of its proper divisors (649173285000).

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

266861106360 is a wasteful number, since it uses less digits than its factorization.

266861106360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752507 (or 1752494 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 266861106360 in words is "two hundred sixty-six billion, eight hundred sixty-one million, one hundred six thousand, three hundred sixty".