16783344506 has 16 divisors (see below), whose sum is σ = 25901686440. Its totient is φ = 8151237120.

The previous prime is 16783344463. The next prime is 16783344533. The reversal of 16783344506 is 60544338761.

It can be written as a sum of positive squares in 4 ways, for example, as 8940648025 + 7842696481 = 94555^2 + 88559^2 .

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, 428111 + ... + 465666.

Almost surely, 2^16783344506 is an apocalyptic number.

16783344506 is a deficient number, since it is larger than the sum of its proper divisors (9118341934).

16783344506 is a wasteful number, since it uses less digits than its factorization.

16783344506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894049.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 16783344506 in words is "sixteen billion, seven hundred eighty-three million, three hundred forty-four thousand, five hundred six".