16998162129 has 27 divisors (see below), whose sum is σ = 26594824347. Its totient is φ = 10457278416.

The previous prime is 16998162107. The next prime is 16998162131. The reversal of 16998162129 is 92126189961.

The square root of 16998162129 is 130377.

It is a perfect power (a square), and thus also a powerful number.

16998162129 is a `hidden beast` number, since 1 + 6 + 9 + 9 + 8 + 1 + 621 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2514521025 + 14483641104 = 50145^2 + 120348^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16998162129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16998162149) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5083032 + ... + 5086374.

Almost surely, 2^16998162129 is an apocalyptic number.

16998162129 is the 130377-th square number.

16998162129 is the 65189-th centered octagonal number.

It is an amenable number.

16998162129 is a deficient number, since it is larger than the sum of its proper divisors (9596662218).

16998162129 is an frugal number, since it uses more digits than its factorization.

16998162129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718 (or 3359 counting only the distinct ones).

The product of its digits is 839808, while the sum is 54.

The spelling of 16998162129 in words is "sixteen billion, nine hundred ninety-eight million, one hundred sixty-two thousand, one hundred twenty-nine".