135511422542551 has 4 divisors (see below), whose sum is σ = 147830642773704. Its totient is φ = 123192202311400.

The previous prime is 135511422542533. The next prime is 135511422542569. The reversal of 135511422542551 is 155245224115531.

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

It is an interprime number because it is at equal distance from previous prime (135511422542533) and next prime (135511422542569).

It is a cyclic number.

It is not a de Polignac number, because 135511422542551 - 2²³ = 135511414153943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135511422542501) 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, 6159610115560 + ... + 6159610115581.

It is an arithmetic number, because the mean of its divisors is an integer number (36957660693426).

Almost surely, 2^{135511422542551} is an apocalyptic number.

135511422542551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135511422542551 is a deficient number, since it is larger than the sum of its proper divisors (12319220231153).

135511422542551 is a wasteful number, since it uses less digits than its factorization.

135511422542551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12319220231152.

The product of its digits is 1200000, while the sum is 46.

The spelling of 135511422542551 in words is "one hundred thirty-five trillion, five hundred eleven billion, four hundred twenty-two million, five hundred forty-two thousand, five hundred fifty-one".