128127994166080 has 112 divisors (see below), whose sum is σ = 328631838828480. Its totient is φ = 47424608759808.

The previous prime is 128127994165973. The next prime is 128127994166093. The reversal of 128127994166080 is 80661499721821.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 244781389 + ... + 245304268.

Almost surely, 2^{128127994166080} is an apocalyptic number.

128127994166080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128127994166080 is an abundant number, since it is smaller than the sum of its proper divisors (200503844662400).

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

128127994166080 is a wasteful number, since it uses less digits than its factorization.

128127994166080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490085736 (or 490085726 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 128127994166080 in words is "one hundred twenty-eight trillion, one hundred twenty-seven billion, nine hundred ninety-four million, one hundred sixty-six thousand, eighty".