266895772200660 has 48 divisors (see below), whose sum is σ = 747325635126336. Its totient is φ = 71170541828352.

The previous prime is 266895772200593. The next prime is 266895772200671. The reversal of 266895772200660 is 66002277598662.

It is a junction number, because it is equal to n+sod(n) for n = 266895772200591 and 266895772200600.

It is a congruent number.

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, 49414257 + ... + 54548696.

It is an arithmetic number, because the mean of its divisors is an integer number (15569284065132).

Almost surely, 2^{266895772200660} is an apocalyptic number.

266895772200660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266895772200660 is an abundant number, since it is smaller than the sum of its proper divisors (480429862925676).

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

266895772200660 is a wasteful number, since it uses less digits than its factorization.

266895772200660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104005752 (or 104005750 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 66.

The spelling of 266895772200660 in words is "two hundred sixty-six trillion, eight hundred ninety-five billion, seven hundred seventy-two million, two hundred thousand, six hundred sixty".