16648937442 has 24 divisors (see below), whose sum is σ = 36107658444. Its totient is φ = 5544267264.

The previous prime is 16648937429. The next prime is 16648937443. The reversal of 16648937442 is 24473984661.

16648937442 is a `hidden beast` number, since 166 + 4 + 8 + 9 + 37 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12071197161 + 4577740281 = 109869^2 + 67659^2 .

It is not an unprimeable number, because it can be changed into a prime (16648937443) 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 11 ways as a sum of consecutive naturals, for example, 429103 + ... + 466290.

Almost surely, 2^16648937442 is an apocalyptic number.

16648937442 is an abundant number, since it is smaller than the sum of its proper divisors (19458721002).

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

16648937442 is a wasteful number, since it uses less digits than its factorization.

16648937442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896434 (or 896431 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The spelling of 16648937442 in words is "sixteen billion, six hundred forty-eight million, nine hundred thirty-seven thousand, four hundred forty-two".