135215990008 has 64 divisors (see below), whose sum is σ = 278559220320. Its totient is φ = 61022208000.

The previous prime is 135215990003. The next prime is 135215990009. The reversal of 135215990008 is 800099512531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135215990003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22116360 + ... + 22122472.

Almost surely, 2^135215990008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135215990008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139279610160).

135215990008 is an abundant number, since it is smaller than the sum of its proper divisors (143343230312).

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

135215990008 is a wasteful number, since it uses less digits than its factorization.

135215990008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 43.

The spelling of 135215990008 in words is "one hundred thirty-five billion, two hundred fifteen million, nine hundred ninety thousand, eight".