128000654681646 has 32 divisors (see below), whose sum is σ = 263183975523360. Its totient is φ = 41472087129216.

The previous prime is 128000654681623. The next prime is 128000654681803. The reversal of 128000654681646 is 646186456000821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288935901 + ... + 289378568.

It is an arithmetic number, because the mean of its divisors is an integer number (8224499235105).

Almost surely, 2^{128000654681646} is an apocalyptic number.

128000654681646 is an abundant number, since it is smaller than the sum of its proper divisors (135183320841714).

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

128000654681646 is a wasteful number, since it uses less digits than its factorization.

128000654681646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578315508.

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 128000654681646 in words is "one hundred twenty-eight trillion, six hundred fifty-four million, six hundred eighty-one thousand, six hundred forty-six".