128118417168 has 40 divisors (see below), whose sum is σ = 378254375488. Its totient is φ = 36605261952.

The previous prime is 128118417131. The next prime is 128118417209. The reversal of 128118417168 is 861714811821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190652071 + ... + 190652742.

Almost surely, 2^128118417168 is an apocalyptic number.

It is an amenable number.

128118417168 is an abundant number, since it is smaller than the sum of its proper divisors (250135958320).

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

128118417168 is a wasteful number, since it uses less digits than its factorization.

128118417168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381304831 (or 381304825 counting only the distinct ones).

The product of its digits is 172032, while the sum is 48.

The spelling of 128118417168 in words is "one hundred twenty-eight billion, one hundred eighteen million, four hundred seventeen thousand, one hundred sixty-eight".