136311775183681 has 6 divisors (see below), whose sum is σ = 139273733179970. Its totient is φ = 133411524645696.

The previous prime is 136311775183651. The next prime is 136311775183691. The reversal of 136311775183681 is 186381577113631.

It can be written as a sum of positive squares in only one way, i.e., 108234705695281 + 28077069488400 = 10403591^2 + 5298780^2 .

It is not a de Polignac number, because 136311775183681 - 2¹⁵ = 136311775150913 is a prime.

It is a super-2 number, since 2×136311775183681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136311775183651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30853726896 + ... + 30853731313.

Almost surely, 2^{136311775183681} is an apocalyptic number.

It is an amenable number.

136311775183681 is a deficient number, since it is larger than the sum of its proper divisors (2961957996289).

136311775183681 is an frugal number, since it uses more digits than its factorization.

136311775183681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61707458303 (or 61707458256 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 61.

The spelling of 136311775183681 in words is "one hundred thirty-six trillion, three hundred eleven billion, seven hundred seventy-five million, one hundred eighty-three thousand, six hundred eighty-one".