135178169896 has 128 divisors (see below), whose sum is σ = 321241743360. Its totient is φ = 51797491200.

The previous prime is 135178169851. The next prime is 135178169921. The reversal of 135178169896 is 698961871531.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16499161 + ... + 16507351.

It is an arithmetic number, because the mean of its divisors is an integer number (2509701120).

Almost surely, 2^135178169896 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 135178169896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160620871680).

135178169896 is an abundant number, since it is smaller than the sum of its proper divisors (186063573464).

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

135178169896 is a wasteful number, since it uses less digits than its factorization.

135178169896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8655 (or 8651 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 64.

The spelling of 135178169896 in words is "one hundred thirty-five billion, one hundred seventy-eight million, one hundred sixty-nine thousand, eight hundred ninety-six".