16445633546 has 8 divisors (see below), whose sum is σ = 24669779904. Its totient is φ = 8222373580.

The previous prime is 16445633531. The next prime is 16445633551. The reversal of 16445633546 is 64533654461.

16445633546 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 16445633546.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173090 + ... + 250701.

It is an arithmetic number, because the mean of its divisors is an integer number (3083722488).

Almost surely, 2^16445633546 is an apocalyptic number.

16445633546 is a deficient number, since it is larger than the sum of its proper divisors (8224146358).

16445633546 is a wasteful number, since it uses less digits than its factorization.

16445633546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443196.

The product of its digits is 3110400, while the sum is 47.

The spelling of 16445633546 in words is "sixteen billion, four hundred forty-five million, six hundred thirty-three thousand, five hundred forty-six".