136566241579 has 2 divisors, whose sum is σ = 136566241580. Its totient is φ = 136566241578.

The previous prime is 136566241531. The next prime is 136566241621. The reversal of 136566241579 is 975142665631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136566241579 - 2¹⁵ = 136566208811 is a prime.

It is not a weakly prime, because it can be changed into another prime (136566241529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68283120789 + 68283120790.

It is an arithmetic number, because the mean of its divisors is an integer number (68283120790).

Almost surely, 2^136566241579 is an apocalyptic number.

136566241579 is a deficient number, since it is larger than the sum of its proper divisors (1).

136566241579 is an equidigital number, since it uses as much as digits as its factorization.

136566241579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 55.

The spelling of 136566241579 in words is "one hundred thirty-six billion, five hundred sixty-six million, two hundred forty-one thousand, five hundred seventy-nine".