16982781124 has 27 divisors (see below), whose sum is σ = 31079186733. Its totient is φ = 8119332672.

The previous prime is 16982781103. The next prime is 16982781131. The reversal of 16982781124 is 42118728961.

The square root of 16982781124 is 130318.

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

It can be written as a sum of positive squares in only one way, i.e., 6666722500 + 10316058624 = 81650^2 + 101568^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5993212 + ... + 5996044.

Almost surely, 2^16982781124 is an apocalyptic number.

16982781124 is the 130318-th square number.

It is an amenable number.

16982781124 is a deficient number, since it is larger than the sum of its proper divisors (14096405609).

16982781124 is an frugal number, since it uses more digits than its factorization.

16982781124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5716 (or 2858 counting only the distinct ones).

The product of its digits is 387072, while the sum is 49.

Multiplying 16982781124 by its sum of digits (49), we get a square (832156275076 = 912226²).

The spelling of 16982781124 in words is "sixteen billion, nine hundred eighty-two million, seven hundred eighty-one thousand, one hundred twenty-four".