12066365464777 has 16 divisors (see below), whose sum is σ = 13025483201808. Its totient is φ = 11111677332480.

The previous prime is 12066365464739. The next prime is 12066365464807. The reversal of 12066365464777 is 77746456366021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 982419951241 + 11083945513536 = 991171^2 + 3329256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12066365464777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12066365464477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28514413 + ... + 28934485.

It is an arithmetic number, because the mean of its divisors is an integer number (814092700113).

Almost surely, 2^{12066365464777} is an apocalyptic number.

It is an amenable number.

12066365464777 is a deficient number, since it is larger than the sum of its proper divisors (959117737031).

12066365464777 is a wasteful number, since it uses less digits than its factorization.

12066365464777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425340.

The product of its (nonzero) digits is 213373440, while the sum is 64.

The spelling of 12066365464777 in words is "twelve trillion, sixty-six billion, three hundred sixty-five million, four hundred sixty-four thousand, seven hundred seventy-seven".