128226266016 has 48 divisors (see below), whose sum is σ = 341204842944. Its totient is φ = 42156578304.

The previous prime is 128226265969. The next prime is 128226266039. The reversal of 128226266016 is 610662622821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9141556 + ... + 9155571.

It is an arithmetic number, because the mean of its divisors is an integer number (7108434228).

Almost surely, 2^128226266016 is an apocalyptic number.

128226266016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128226266016 is an abundant number, since it is smaller than the sum of its proper divisors (212978576928).

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

128226266016 is a wasteful number, since it uses less digits than its factorization.

128226266016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18297213 (or 18297205 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

Adding to 128226266016 its reverse (610662622821), we get a palindrome (738888888837).

The spelling of 128226266016 in words is "one hundred twenty-eight billion, two hundred twenty-six million, two hundred sixty-six thousand, sixteen".