135461615605111 has 4 divisors (see below), whose sum is σ = 136272763004112. Its totient is φ = 134650468206112.

The previous prime is 135461615605067. The next prime is 135461615605123. The reversal of 135461615605111 is 111506516164531.

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 135461615605111 - 2²³ = 135461607216503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135461615600111) 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, 405573699250 + ... + 405573699583.

It is an arithmetic number, because the mean of its divisors is an integer number (34068190751028).

Almost surely, 2^{135461615605111} is an apocalyptic number.

135461615605111 is a deficient number, since it is larger than the sum of its proper divisors (811147399001).

135461615605111 is an equidigital number, since it uses as much as digits as its factorization.

135461615605111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811147399000.

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 135461615605111 in words is "one hundred thirty-five trillion, four hundred sixty-one billion, six hundred fifteen million, six hundred five thousand, one hundred eleven".