135555042000 has 320 divisors, whose sum is σ = 528845151744. Its totient is φ = 29161267200.

The previous prime is 135555041981. The next prime is 135555042011. The reversal of 135555042000 is 240555531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 619074 + ... + 808926.

Almost surely, 2^135555042000 is an apocalyptic number.

135555042000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135555042000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264422575872).

135555042000 is an abundant number, since it is smaller than the sum of its proper divisors (393290109744).

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

135555042000 is a wasteful number, since it uses less digits than its factorization.

135555042000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189903 (or 189887 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 135555042000 its reverse (240555531), we get a palindrome (135795597531).

The spelling of 135555042000 in words is "one hundred thirty-five billion, five hundred fifty-five million, forty-two thousand".