16989548498244 has 135 divisors (see below), whose sum is σ = 51666886274157. Its totient is φ = 4854008327616.

The previous prime is 16989548498201. The next prime is 16989548498291. The reversal of 16989548498244 is 44289484598961.

It is a happy number.

The square root of 16989548498244 is 4121838.

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

16989548498244 is a `hidden beast` number, since 1 + 6 + 9 + 8 + 9 + 5 + 484 + 98 + 2 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8943748172100 + 8045800326144 = 2990610^2 + 2836512^2 .

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

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 44 ways as a sum of consecutive naturals, for example, 519335232 + ... + 519367944.

Almost surely, 2^{16989548498244} is an apocalyptic number.

16989548498244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16989548498244 is the 4121838-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16989548498244

16989548498244 is an abundant number, since it is smaller than the sum of its proper divisors (34677337775913).

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

16989548498244 is an frugal number, since it uses more digits than its factorization.

16989548498244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65456 (or 32725 counting only the distinct ones).

The product of its digits is 5733089280, while the sum is 81.

16989548498244 divided by its sum of digits (81) gives a square (209747512324 = 457982²).

The spelling of 16989548498244 in words is "sixteen trillion, nine hundred eighty-nine billion, five hundred forty-eight million, four hundred ninety-eight thousand, two hundred forty-four".