12050661577 has 2 divisors, whose sum is σ = 12050661578. Its totient is φ = 12050661576.

The previous prime is 12050661563. The next prime is 12050661583. The reversal of 12050661577 is 77516605021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9811100601 + 2239560976 = 99051^2 + 47324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12050661577 is a prime.

It is not a weakly prime, because it can be changed into another prime (12050661977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6025330788 + 6025330789.

It is an arithmetic number, because the mean of its divisors is an integer number (6025330789).

Almost surely, 2^12050661577 is an apocalyptic number.

It is an amenable number.

12050661577 is a deficient number, since it is larger than the sum of its proper divisors (1).

12050661577 is an equidigital number, since it uses as much as digits as its factorization.

12050661577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 12050661577 in words is "twelve billion, fifty million, six hundred sixty-one thousand, five hundred seventy-seven".