136886158081 has 2 divisors, whose sum is σ = 136886158082. Its totient is φ = 136886158080.

The previous prime is 136886158067. The next prime is 136886158109. The reversal of 136886158081 is 180851688631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83521000000 + 53365158081 = 289000^2 + 231009^2 .

It is a cyclic number.

It is not a de Polignac number, because 136886158081 - 2⁷ = 136886157953 is a prime.

It is a super-2 number, since 2×136886158081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136886158481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68443079040 + 68443079041.

It is an arithmetic number, because the mean of its divisors is an integer number (68443079041).

Almost surely, 2^136886158081 is an apocalyptic number.

It is an amenable number.

136886158081 is a deficient number, since it is larger than the sum of its proper divisors (1).

136886158081 is an equidigital number, since it uses as much as digits as its factorization.

136886158081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2211840, while the sum is 55.

The spelling of 136886158081 in words is "one hundred thirty-six billion, eight hundred eighty-six million, one hundred fifty-eight thousand, eighty-one".