135551555532 has 18 divisors (see below), whose sum is σ = 342644209908. Its totient is φ = 45183851832.

The previous prime is 135551555497. The next prime is 135551555563. The reversal of 135551555532 is 235555155531.

135551555532 is a `hidden beast` number, since 1 + 3 + 5 + 55 + 15 + 55 + 532 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1882660458 + ... + 1882660529.

Almost surely, 2^135551555532 is an apocalyptic number.

135551555532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135551555532 is an abundant number, since it is smaller than the sum of its proper divisors (207092654376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135551555532 is a wasteful number, since it uses less digits than its factorization.

135551555532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765320997 (or 3765320992 counting only the distinct ones).

The product of its digits is 1406250, while the sum is 45.

The spelling of 135551555532 in words is "one hundred thirty-five billion, five hundred fifty-one million, five hundred fifty-five thousand, five hundred thirty-two".