1266760733260 has 192 divisors, whose sum is σ = 3290421657600. Its totient is φ = 403956115200.

The previous prime is 1266760733243. The next prime is 1266760733263. The reversal of 1266760733260 is 623370676621.

It is not an unprimeable number, because it can be changed into a prime (1266760733263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2767821 + ... + 3192859.

It is an arithmetic number, because the mean of its divisors is an integer number (17137612800).

Almost surely, 2^{1266760733260} is an apocalyptic number.

1266760733260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266760733260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645210828800).

1266760733260 is an abundant number, since it is smaller than the sum of its proper divisors (2023660924340).

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

1266760733260 is a wasteful number, since it uses less digits than its factorization.

1266760733260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425132 (or 425130 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 49.

The spelling of 1266760733260 in words is "one trillion, two hundred sixty-six billion, seven hundred sixty million, seven hundred thirty-three thousand, two hundred sixty".