136136105621211 has 4 divisors (see below), whose sum is σ = 181514807494952. Its totient is φ = 90757403747472.

The previous prime is 136136105621143. The next prime is 136136105621231. The reversal of 136136105621211 is 112126501631631.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 136136105621211 - 2¹⁹ = 136136105096923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136136105621211.

It is not an unprimeable number, because it can be changed into a prime (136136105621231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22689350936866 + ... + 22689350936871.

It is an arithmetic number, because the mean of its divisors is an integer number (45378701873738).

Almost surely, 2^{136136105621211} is an apocalyptic number.

136136105621211 is a deficient number, since it is larger than the sum of its proper divisors (45378701873741).

136136105621211 is an equidigital number, since it uses as much as digits as its factorization.

136136105621211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45378701873740.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 136136105621211 in words is "one hundred thirty-six trillion, one hundred thirty-six billion, one hundred five million, six hundred twenty-one thousand, two hundred eleven".