12666061060 has 12 divisors (see below), whose sum is σ = 26598728268. Its totient is φ = 5066424416.

The previous prime is 12666061033. The next prime is 12666061069. The reversal of 12666061060 is 6016066621.

It can be written as a sum of positive squares in 2 ways, for example, as 3199938624 + 9466122436 = 56568^2 + 97294^2 .

It is not an unprimeable number, because it can be changed into a prime (12666061069) 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, 316651507 + ... + 316651546.

It is an arithmetic number, because the mean of its divisors is an integer number (2216560689).

Almost surely, 2^12666061060 is an apocalyptic number.

12666061060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12666061060 is an abundant number, since it is smaller than the sum of its proper divisors (13932667208).

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

12666061060 is a wasteful number, since it uses less digits than its factorization.

12666061060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633303062 (or 633303060 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 12666061060 in words is "twelve billion, six hundred sixty-six million, sixty-one thousand, sixty".