135803060406 has 128 divisors (see below), whose sum is σ = 352510704000. Its totient is φ = 38368235520.

The previous prime is 135803060377. The next prime is 135803060411. The reversal of 135803060406 is 604060308531.

135803060406 is a `hidden beast` number, since 1 + 3 + 580 + 30 + 6 + 0 + 40 + 6 = 666.

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, 350520 + ... + 628068.

It is an arithmetic number, because the mean of its divisors is an integer number (2753989875).

Almost surely, 2^135803060406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135803060406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176255352000).

135803060406 is an abundant number, since it is smaller than the sum of its proper divisors (216707643594).

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

135803060406 is a wasteful number, since it uses less digits than its factorization.

135803060406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277631 (or 277625 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 135803060406 its reverse (604060308531), we get a palindrome (739863368937).

The spelling of 135803060406 in words is "one hundred thirty-five billion, eight hundred three million, sixty thousand, four hundred six".