128207642224 has 20 divisors (see below), whose sum is σ = 254460900960. Its totient is φ = 62540312960.

The previous prime is 128207642161. The next prime is 128207642237. The reversal of 128207642224 is 422246702821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97718584 + ... + 97719895.

It is an arithmetic number, because the mean of its divisors is an integer number (12723045048).

Almost surely, 2^128207642224 is an apocalyptic number.

It is an amenable number.

128207642224 is a deficient number, since it is larger than the sum of its proper divisors (126253258736).

128207642224 is a wasteful number, since it uses less digits than its factorization.

128207642224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195438528 (or 195438522 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 128207642224 in words is "one hundred twenty-eight billion, two hundred seven million, six hundred forty-two thousand, two hundred twenty-four".