16591328115 has 16 divisors (see below), whose sum is σ = 26607442848. Its totient is φ = 8828269056.

The previous prime is 16591328111. The next prime is 16591328153. The reversal of 16591328115 is 51182319561.

It is not a de Polignac number, because 16591328115 - 2² = 16591328111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16591328111) 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, 1270744 + ... + 1283733.

It is an arithmetic number, because the mean of its divisors is an integer number (1662965178).

Almost surely, 2^16591328115 is an apocalyptic number.

16591328115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16591328115 is a deficient number, since it is larger than the sum of its proper divisors (10016114733).

16591328115 is a wasteful number, since it uses less digits than its factorization.

16591328115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554918.

The product of its digits is 64800, while the sum is 42.

The spelling of 16591328115 in words is "sixteen billion, five hundred ninety-one million, three hundred twenty-eight thousand, one hundred fifteen".