266006664326540 has 48 divisors (see below), whose sum is σ = 562065233925888. Its totient is φ = 105746896164864.

The previous prime is 266006664326519. The next prime is 266006664326573. The reversal of 266006664326540 is 45623466600662.

266006664326540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266006664326540² (a number of 30 digits) contains 22 as substring.

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, 47644217 + ... + 52933776.

It is an arithmetic number, because the mean of its divisors is an integer number (11709692373456).

Almost surely, 2^{266006664326540} is an apocalyptic number.

266006664326540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266006664326540 is an abundant number, since it is smaller than the sum of its proper divisors (296058569599348).

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

266006664326540 is a wasteful number, since it uses less digits than its factorization.

266006664326540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100578818 (or 100578816 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 56.

The spelling of 266006664326540 in words is "two hundred sixty-six trillion, six billion, six hundred sixty-four million, three hundred twenty-six thousand, five hundred forty".