128023166829 has 8 divisors (see below), whose sum is σ = 170805393792. Its totient is φ = 85294858880.

The previous prime is 128023166759. The next prime is 128023166833. The reversal of 128023166829 is 928661320821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128023166829 - 2⁹ = 128023166317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128023166879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13474212 + ... + 13483709.

It is an arithmetic number, because the mean of its divisors is an integer number (21350674224).

Almost surely, 2^128023166829 is an apocalyptic number.

It is an amenable number.

128023166829 is a deficient number, since it is larger than the sum of its proper divisors (42782226963).

128023166829 is a wasteful number, since it uses less digits than its factorization.

128023166829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26959507.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 128023166829 in words is "one hundred twenty-eight billion, twenty-three million, one hundred sixty-six thousand, eight hundred twenty-nine".