135420361636 has 12 divisors (see below), whose sum is σ = 270840723328. Its totient is φ = 58037297832.

The previous prime is 135420361621. The next prime is 135420361667. The reversal of 135420361636 is 636163024531.

135420361636 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2418220716 + ... + 2418220771.

Almost surely, 2^135420361636 is an apocalyptic number.

It is an amenable number.

135420361636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

135420361636 is a wasteful number, since it uses less digits than its factorization.

135420361636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836441498 (or 4836441496 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 135420361636 in words is "one hundred thirty-five billion, four hundred twenty million, three hundred sixty-one thousand, six hundred thirty-six".