266340205910680 has 32 divisors (see below), whose sum is σ = 653744141781840. Its totient is φ = 96850983967360.

The previous prime is 266340205910677. The next prime is 266340205910683. The reversal of 266340205910680 is 86019502043662.

266340205910680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (266340205910677) and next prime (266340205910683).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266340205910683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302659324459 + ... + 302659325338.

Almost surely, 2^{266340205910680} is an apocalyptic number.

266340205910680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266340205910680 is an abundant number, since it is smaller than the sum of its proper divisors (387403935871160).

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

266340205910680 is a wasteful number, since it uses less digits than its factorization.

266340205910680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605318649819 (or 605318649815 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 266340205910680 in words is "two hundred sixty-six trillion, three hundred forty billion, two hundred five million, nine hundred ten thousand, six hundred eighty".