266946813494808 has 16 divisors (see below), whose sum is σ = 667367033737080. Its totient is φ = 88982271164928.

The previous prime is 266946813494807. The next prime is 266946813494831. The reversal of 266946813494808 is 808494318649662.

266946813494808 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266946813494807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5561391947785 + ... + 5561391947832.

Almost surely, 2^{266946813494808} is an apocalyptic number.

It is an amenable number.

266946813494808 is an abundant number, since it is smaller than the sum of its proper divisors (400420220242272).

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

266946813494808 is a wasteful number, since it uses less digits than its factorization.

266946813494808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11122783895626 (or 11122783895622 counting only the distinct ones).

The product of its (nonzero) digits is 3439853568, while the sum is 78.

The spelling of 266946813494808 in words is "two hundred sixty-six trillion, nine hundred forty-six billion, eight hundred thirteen million, four hundred ninety-four thousand, eight hundred eight".