128252622023220 has 48 divisors (see below), whose sum is σ = 361690847743680. Its totient is φ = 33954651008256.

The previous prime is 128252622023209. The next prime is 128252622023243. The reversal of 128252622023220 is 22320226252821.

It is a happy number.

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, 7688997777 + ... + 7689014456.

It is an arithmetic number, because the mean of its divisors is an integer number (7535225994660).

Almost surely, 2^{128252622023220} is an apocalyptic number.

128252622023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128252622023220 is an abundant number, since it is smaller than the sum of its proper divisors (233438225720460).

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

128252622023220 is a wasteful number, since it uses less digits than its factorization.

128252622023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15378012384 (or 15378012382 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 128252622023220 in words is "one hundred twenty-eight trillion, two hundred fifty-two billion, six hundred twenty-two million, twenty-three thousand, two hundred twenty".