16128989090434 has 8 divisors (see below), whose sum is σ = 26392891238928. Its totient is φ = 7331358677460.

The previous prime is 16128989090323. The next prime is 16128989090437. The reversal of 16128989090434 is 43409098982161.

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

It is not an unprimeable number, because it can be changed into a prime (16128989090437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366567933852 + ... + 366567933895.

It is an arithmetic number, because the mean of its divisors is an integer number (3299111404866).

Almost surely, 2^{16128989090434} is an apocalyptic number.

16128989090434 is a deficient number, since it is larger than the sum of its proper divisors (10263902148494).

16128989090434 is a wasteful number, since it uses less digits than its factorization.

16128989090434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733135867760.

The product of its (nonzero) digits is 26873856, while the sum is 64.

The spelling of 16128989090434 in words is "sixteen trillion, one hundred twenty-eight billion, nine hundred eighty-nine million, ninety thousand, four hundred thirty-four".