136213665611 has 4 divisors (see below), whose sum is σ = 136214929032. Its totient is φ = 136212402192.

The previous prime is 136213665589. The next prime is 136213665661. The reversal of 136213665611 is 116566312631.

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

It is a cyclic number.

It is not a de Polignac number, because 136213665611 - 2⁶ = 136213665547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136213665661) 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, 453170 + ... + 691223.

It is an arithmetic number, because the mean of its divisors is an integer number (34053732258).

Almost surely, 2^136213665611 is an apocalyptic number.

136213665611 is a deficient number, since it is larger than the sum of its proper divisors (1263421).

136213665611 is a wasteful number, since it uses less digits than its factorization.

136213665611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263420.

The product of its digits is 116640, while the sum is 41.

The spelling of 136213665611 in words is "one hundred thirty-six billion, two hundred thirteen million, six hundred sixty-five thousand, six hundred eleven".