128453434161 has 8 divisors (see below), whose sum is σ = 184445956800. Its totient is φ = 79048267152.

The previous prime is 128453434139. The next prime is 128453434217. The reversal of 128453434161 is 161434354821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128453434161 - 2⁵ = 128453434129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128453434111) 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, 1646838861 + ... + 1646838938.

It is an arithmetic number, because the mean of its divisors is an integer number (23055744600).

Almost surely, 2^128453434161 is an apocalyptic number.

It is an amenable number.

128453434161 is a deficient number, since it is larger than the sum of its proper divisors (55992522639).

128453434161 is a wasteful number, since it uses less digits than its factorization.

128453434161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293677815.

The product of its digits is 276480, while the sum is 42.

Adding to 128453434161 its reverse (161434354821), we get a palindrome (289887788982).

The spelling of 128453434161 in words is "one hundred twenty-eight billion, four hundred fifty-three million, four hundred thirty-four thousand, one hundred sixty-one".