1266305060 has 12 divisors (see below), whose sum is σ = 2659240668. Its totient is φ = 506522016.

The previous prime is 1266305059. The next prime is 1266305071. The reversal of 1266305060 is 605036621.

It can be written as a sum of positive squares in 2 ways, for example, as 682985956 + 583319104 = 26134^2 + 24152^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31657607 + ... + 31657646.

It is an arithmetic number, because the mean of its divisors is an integer number (221603389).

Almost surely, 2^1266305060 is an apocalyptic number.

1266305060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1266305060 is an abundant number, since it is smaller than the sum of its proper divisors (1392935608).

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

1266305060 is a wasteful number, since it uses less digits than its factorization.

1266305060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63315262 (or 63315260 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1266305060 is about 35585.1803423841. The cubic root of 1266305060 is about 1081.8808845198.

The spelling of 1266305060 in words is "one billion, two hundred sixty-six million, three hundred five thousand, sixty".