128225301644 has 24 divisors (see below), whose sum is σ = 248241563136. Its totient is φ = 57463322000.

The previous prime is 128225301571. The next prime is 128225301647. The reversal of 128225301644 is 446103522821.

It is a junction number, because it is equal to n+sod(n) for n = 128225301598 and 128225301607.

It is not an unprimeable number, because it can be changed into a prime (128225301647) 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, 20519492 + ... + 20525739.

It is an arithmetic number, because the mean of its divisors is an integer number (10343398464).

Almost surely, 2^128225301644 is an apocalyptic number.

It is an amenable number.

128225301644 is a deficient number, since it is larger than the sum of its proper divisors (120016261492).

128225301644 is a wasteful number, since it uses less digits than its factorization.

128225301644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41045317 (or 41045315 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 128225301644 in words is "one hundred twenty-eight billion, two hundred twenty-five million, three hundred one thousand, six hundred forty-four".