135585078551 has 8 divisors (see below), whose sum is σ = 146017752384. Its totient is φ = 125152840800.

The previous prime is 135585078533. The next prime is 135585078557. The reversal of 135585078551 is 155870585531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135585078551 - 2¹⁰ = 135585077527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135585078493 and 135585078502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135585078557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847826 + ... + 994976.

It is an arithmetic number, because the mean of its divisors is an integer number (18252219048).

Almost surely, 2^135585078551 is an apocalyptic number.

135585078551 is a deficient number, since it is larger than the sum of its proper divisors (10432673833).

135585078551 is a wasteful number, since it uses less digits than its factorization.

135585078551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218041.

The product of its (nonzero) digits is 4200000, while the sum is 53.

The spelling of 135585078551 in words is "one hundred thirty-five billion, five hundred eighty-five million, seventy-eight thousand, five hundred fifty-one".