12010661660 has 12 divisors (see below), whose sum is σ = 25222389528. Its totient is φ = 4804264656.

The previous prime is 12010661657. The next prime is 12010661699. The reversal of 12010661660 is 6616601021.

12010661660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300266522 + ... + 300266561.

It is an arithmetic number, because the mean of its divisors is an integer number (2101865794).

Almost surely, 2^12010661660 is an apocalyptic number.

12010661660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010661660 is an abundant number, since it is smaller than the sum of its proper divisors (13211727868).

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

12010661660 is a wasteful number, since it uses less digits than its factorization.

12010661660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600533092 (or 600533090 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 12010661660 in words is "twelve billion, ten million, six hundred sixty-one thousand, six hundred sixty".