136662889522 has 4 divisors (see below), whose sum is σ = 204994334286. Its totient is φ = 68331444760.

The previous prime is 136662889511. The next prime is 136662889529. The reversal of 136662889522 is 225988266631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225988266631 = 46727 ⋅4836353.

It can be written as a sum of positive squares in only one way, i.e., 136189783521 + 473106001 = 369039^2 + 21751^2 .

It is not an unprimeable number, because it can be changed into a prime (136662889529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34165722379 + ... + 34165722382.

Almost surely, 2^136662889522 is an apocalyptic number.

136662889522 is a deficient number, since it is larger than the sum of its proper divisors (68331444764).

136662889522 is an equidigital number, since it uses as much as digits as its factorization.

136662889522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68331444763.

The product of its digits is 14929920, while the sum is 58.

The spelling of 136662889522 in words is "one hundred thirty-six billion, six hundred sixty-two million, eight hundred eighty-nine thousand, five hundred twenty-two".