266167538660 has 48 divisors (see below), whose sum is σ = 559939746240. Its totient is φ = 106278990720.

The previous prime is 266167538641. The next prime is 266167538669. The reversal of 266167538660 is 66835761662.

It is a junction number, because it is equal to n+sod(n) for n = 266167538596 and 266167538605.

It is not an unprimeable number, because it can be changed into a prime (266167538669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48120095 + ... + 48125625.

It is an arithmetic number, because the mean of its divisors is an integer number (11665411380).

Almost surely, 2^266167538660 is an apocalyptic number.

266167538660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266167538660 is an abundant number, since it is smaller than the sum of its proper divisors (293772207580).

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

266167538660 is a wasteful number, since it uses less digits than its factorization.

266167538660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356 (or 9354 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 266167538660 in words is "two hundred sixty-six billion, one hundred sixty-seven million, five hundred thirty-eight thousand, six hundred sixty".