128222355946320 has 120 divisors (see below), whose sum is σ = 446562057011616. Its totient is φ = 34192628247168.

The previous prime is 128222355946319. The next prime is 128222355946339. The reversal of 128222355946320 is 23649553222821.

128222355946320 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 2 + 2 + 3 + 559 + 4 + 63 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3297880662 + ... + 3297919541.

Almost surely, 2^{128222355946320} is an apocalyptic number.

128222355946320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128222355946320 is an abundant number, since it is smaller than the sum of its proper divisors (318339701065296).

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

128222355946320 is an equidigital number, since it uses as much as digits as its factorization.

128222355946320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6595800231 (or 6595800213 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 128222355946320 in words is "one hundred twenty-eight trillion, two hundred twenty-two billion, three hundred fifty-five million, nine hundred forty-six thousand, three hundred twenty".