16591228961164 has 96 divisors (see below), whose sum is σ = 34945247780352. Its totient is φ = 6791052096000.

The previous prime is 16591228961149. The next prime is 16591228961191. The reversal of 16591228961164 is 46116982219561.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 560745979 + ... + 560775565.

It is an arithmetic number, because the mean of its divisors is an integer number (364012997712).

Almost surely, 2^{16591228961164} is an apocalyptic number.

It is an amenable number.

16591228961164 is an abundant number, since it is smaller than the sum of its proper divisors (18354018819188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16591228961164 is a wasteful number, since it uses less digits than its factorization.

16591228961164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53567 (or 53565 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 61.

The spelling of 16591228961164 in words is "sixteen trillion, five hundred ninety-one billion, two hundred twenty-eight million, nine hundred sixty-one thousand, one hundred sixty-four".