16916533906 has 4 divisors (see below), whose sum is σ = 25374800862. Its totient is φ = 8458266952.

The previous prime is 16916533901. The next prime is 16916533913. The reversal of 16916533906 is 60933561961.

16916533906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60933561961 = 29 ⋅2101157309.

It can be written as a sum of positive squares in only one way, i.e., 9981808281 + 6934725625 = 99909^2 + 83275^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16916533906.

It is not an unprimeable number, because it can be changed into a prime (16916533901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4229133475 + ... + 4229133478.

Almost surely, 2^16916533906 is an apocalyptic number.

16916533906 is a deficient number, since it is larger than the sum of its proper divisors (8458266956).

16916533906 is an equidigital number, since it uses as much as digits as its factorization.

16916533906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8458266955.

The product of its (nonzero) digits is 787320, while the sum is 49.

The spelling of 16916533906 in words is "sixteen billion, nine hundred sixteen million, five hundred thirty-three thousand, nine hundred six".