16613252171 has 4 divisors (see below), whose sum is σ = 16613580072. Its totient is φ = 16612924272.

The previous prime is 16613252147. The next prime is 16613252209. The reversal of 16613252171 is 17125231661.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16613252171 - 2¹⁰ = 16613251147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16613252101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70010 + ... + 195263.

It is an arithmetic number, because the mean of its divisors is an integer number (4153395018).

Almost surely, 2^16613252171 is an apocalyptic number.

16613252171 is a deficient number, since it is larger than the sum of its proper divisors (327901).

16613252171 is an equidigital number, since it uses as much as digits as its factorization.

16613252171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327900.

The product of its digits is 15120, while the sum is 35.

The spelling of 16613252171 in words is "sixteen billion, six hundred thirteen million, two hundred fifty-two thousand, one hundred seventy-one".