135955889910 has 128 divisors (see below), whose sum is σ = 373843330560. Its totient is φ = 35141977728.

The previous prime is 135955889887. The next prime is 135955889911. The reversal of 135955889910 is 19988559531.

135955889910 is a `hidden beast` number, since 1 + 35 + 9 + 5 + 588 + 9 + 9 + 10 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135955889911) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1130497 + ... + 1244963.

It is an arithmetic number, because the mean of its divisors is an integer number (2920651020).

Almost surely, 2^135955889910 is an apocalyptic number.

135955889910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135955889910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186921665280).

135955889910 is an abundant number, since it is smaller than the sum of its proper divisors (237887440650).

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

135955889910 is a wasteful number, since it uses less digits than its factorization.

135955889910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114619 (or 114613 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 63.

The spelling of 135955889910 in words is "one hundred thirty-five billion, nine hundred fifty-five million, eight hundred eighty-nine thousand, nine hundred ten".