16650503446645 has 8 divisors (see below), whose sum is σ = 19980742762656. Its totient is φ = 13320310339536.

The previous prime is 16650503446607. The next prime is 16650503446691. The reversal of 16650503446645 is 54664430505661.

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

It is a cyclic number.

It is not a de Polignac number, because 16650503446645 - 2⁷ = 16650503446517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10754487 + ... + 12204916.

It is an arithmetic number, because the mean of its divisors is an integer number (2497592845332).

Almost surely, 2^{16650503446645} is an apocalyptic number.

It is an amenable number.

16650503446645 is a deficient number, since it is larger than the sum of its proper divisors (3330239316011).

16650503446645 is a wasteful number, since it uses less digits than its factorization.

16650503446645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23104451.

The product of its (nonzero) digits is 31104000, while the sum is 55.

The spelling of 16650503446645 in words is "sixteen trillion, six hundred fifty billion, five hundred three million, four hundred forty-six thousand, six hundred forty-five".