128105590294848 has 112 divisors (see below), whose sum is σ = 355101871683584. Its totient is φ = 40707601989120.

The previous prime is 128105590294841. The next prime is 128105590294859. The reversal of 128105590294848 is 848492095501821.

It is a happy number.

It is a super-2 number, since 2×128105590294848² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128105590294841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160221490 + ... + 161019057.

Almost surely, 2^{128105590294848} is an apocalyptic number.

It is an amenable number.

128105590294848 is an abundant number, since it is smaller than the sum of its proper divisors (226996281388736).

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

128105590294848 is a wasteful number, since it uses less digits than its factorization.

128105590294848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321240660 (or 321240650 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 66.

The spelling of 128105590294848 in words is "one hundred twenty-eight trillion, one hundred five billion, five hundred ninety million, two hundred ninety-four thousand, eight hundred forty-eight".