135855537574 has 4 divisors (see below), whose sum is σ = 203783306364. Its totient is φ = 67927768786.

The previous prime is 135855537557. The next prime is 135855537581. The reversal of 135855537574 is 475735558531.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33963884392 + ... + 33963884395.

It is an arithmetic number, because the mean of its divisors is an integer number (50945826591).

Almost surely, 2^135855537574 is an apocalyptic number.

135855537574 is a deficient number, since it is larger than the sum of its proper divisors (67927768790).

135855537574 is an equidigital number, since it uses as much as digits as its factorization.

135855537574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67927768789.

The product of its digits is 44100000, while the sum is 58.

The spelling of 135855537574 in words is "one hundred thirty-five billion, eight hundred fifty-five million, five hundred thirty-seven thousand, five hundred seventy-four".