16555749106 has 8 divisors (see below), whose sum is σ = 26743902444. Its totient is φ = 7641114960.

The previous prime is 16555749101. The next prime is 16555749109. The reversal of 16555749106 is 60194755561.

It can be written as a sum of positive squares in 2 ways, for example, as 13364516025 + 3191233081 = 115605^2 + 56491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16555749106.

It is not an unprimeable number, because it can be changed into a prime (16555749101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318379765 + ... + 318379816.

Almost surely, 2^16555749106 is an apocalyptic number.

16555749106 is a deficient number, since it is larger than the sum of its proper divisors (10188153338).

16555749106 is a wasteful number, since it uses less digits than its factorization.

16555749106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636759596.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 16555749106 in words is "sixteen billion, five hundred fifty-five million, seven hundred forty-nine thousand, one hundred six".