16128788907 has 16 divisors (see below), whose sum is σ = 26811493632. Its totient is φ = 8378591520.

The previous prime is 16128788867. The next prime is 16128788909. The reversal of 16128788907 is 70988782161.

It is not a de Polignac number, because 16128788907 - 2⁶ = 16128788843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16128788909) 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, 34910568 + ... + 34911029.

It is an arithmetic number, because the mean of its divisors is an integer number (1675718352).

Almost surely, 2^16128788907 is an apocalyptic number.

16128788907 is a deficient number, since it is larger than the sum of its proper divisors (10682704725).

16128788907 is a wasteful number, since it uses less digits than its factorization.

16128788907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69821618.

The product of its (nonzero) digits is 2709504, while the sum is 57.

The spelling of 16128788907 in words is "sixteen billion, one hundred twenty-eight million, seven hundred eighty-eight thousand, nine hundred seven".