266115404404443 has 64 divisors (see below), whose sum is σ = 400299229158912. Its totient is φ = 155886572666880.

The previous prime is 266115404404373. The next prime is 266115404404457. The reversal of 266115404404443 is 344404404511662.

It is a happy number.

266115404404443 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 266115404404443 - 2⁹ = 266115404403931 is a prime.

It is a super-2 number, since 2×266115404404443² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266115404404392 and 266115404404401.

It is not an unprimeable number, because it can be changed into a prime (266115404404463) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26879371 + ... + 35422187.

It is an arithmetic number, because the mean of its divisors is an integer number (6254675455608).

Almost surely, 2^{266115404404443} is an apocalyptic number.

266115404404443 is a deficient number, since it is larger than the sum of its proper divisors (134183824754469).

266115404404443 is a wasteful number, since it uses less digits than its factorization.

266115404404443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8543164.

The product of its (nonzero) digits is 4423680, while the sum is 48.

The spelling of 266115404404443 in words is "two hundred sixty-six trillion, one hundred fifteen billion, four hundred four million, four hundred four thousand, four hundred forty-three".