135691124558 has 16 divisors (see below), whose sum is σ = 224715206016. Its totient is φ = 60934677240.

The previous prime is 135691124539. The next prime is 135691124573. The reversal of 135691124558 is 855421196531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37153466 + ... + 37157117.

It is an arithmetic number, because the mean of its divisors is an integer number (14044700376).

Almost surely, 2^135691124558 is an apocalyptic number.

135691124558 is a deficient number, since it is larger than the sum of its proper divisors (89024081458).

135691124558 is a wasteful number, since it uses less digits than its factorization.

135691124558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74310679.

The product of its digits is 1296000, while the sum is 50.

The spelling of 135691124558 in words is "one hundred thirty-five billion, six hundred ninety-one million, one hundred twenty-four thousand, five hundred fifty-eight".