16681982948 has 24 divisors (see below), whose sum is σ = 30279366264. Its totient is φ = 8035200000.

The previous prime is 16681982917. The next prime is 16681982969. The reversal of 16681982948 is 84928918661.

It can be written as a sum of positive squares in 4 ways, for example, as 9505860004 + 7176122944 = 97498^2 + 84712^2 .

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 7 ways as a sum of consecutive naturals, for example, 543053 + ... + 572948.

It is an arithmetic number, because the mean of its divisors is an integer number (1261640261).

Almost surely, 2^16681982948 is an apocalyptic number.

It is an amenable number.

16681982948 is a deficient number, since it is larger than the sum of its proper divisors (13597383316).

16681982948 is a wasteful number, since it uses less digits than its factorization.

16681982948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116143 (or 1116141 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 62.

The spelling of 16681982948 in words is "sixteen billion, six hundred eighty-one million, nine hundred eighty-two thousand, nine hundred forty-eight".