12662045677 has 2 divisors, whose sum is σ = 12662045678. Its totient is φ = 12662045676.

The previous prime is 12662045663. The next prime is 12662045701. The reversal of 12662045677 is 77654026621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7178495076 + 5483550601 = 84726^2 + 74051^2 .

It is a cyclic number.

It is not a de Polignac number, because 12662045677 - 2⁷ = 12662045549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12662045477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331022838 + 6331022839.

It is an arithmetic number, because the mean of its divisors is an integer number (6331022839).

Almost surely, 2^12662045677 is an apocalyptic number.

It is an amenable number.

12662045677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12662045677 is an equidigital number, since it uses as much as digits as its factorization.

12662045677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 12662045677 in words is "twelve billion, six hundred sixty-two million, forty-five thousand, six hundred seventy-seven".