136564600477 has 2 divisors, whose sum is σ = 136564600478. Its totient is φ = 136564600476.

The previous prime is 136564600397. The next prime is 136564600499. The reversal of 136564600477 is 774006465631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111655554201 + 24909046276 = 334149^2 + 157826^2 .

It is a cyclic number.

It is not a de Polignac number, because 136564600477 - 2⁷ = 136564600349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136564600477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136564603477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68282300238 + 68282300239.

It is an arithmetic number, because the mean of its divisors is an integer number (68282300239).

Almost surely, 2^136564600477 is an apocalyptic number.

It is an amenable number.

136564600477 is a deficient number, since it is larger than the sum of its proper divisors (1).

136564600477 is an equidigital number, since it uses as much as digits as its factorization.

136564600477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 136564600477 in words is "one hundred thirty-six billion, five hundred sixty-four million, six hundred thousand, four hundred seventy-seven".