266724460780 has 48 divisors (see below), whose sum is σ = 560892165120. Its totient is φ = 106543090368.

The previous prime is 266724460757. The next prime is 266724460813. The reversal of 266724460780 is 87064427662.

It is a happy number.

It is a super-2 number, since 2×266724460780² (a number of 24 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, 64627077 + ... + 64631203.

It is an arithmetic number, because the mean of its divisors is an integer number (11685253440).

Almost surely, 2^266724460780 is an apocalyptic number.

266724460780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266724460780 is an abundant number, since it is smaller than the sum of its proper divisors (294167704340).

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

266724460780 is a wasteful number, since it uses less digits than its factorization.

266724460780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798 (or 7796 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 266724460780 in words is "two hundred sixty-six billion, seven hundred twenty-four million, four hundred sixty thousand, seven hundred eighty".