16555220646424 has 16 divisors (see below), whose sum is σ = 31246608507120. Its totient is φ = 8222791711200.

The previous prime is 16555220646257. The next prime is 16555220646457. The reversal of 16555220646424 is 42464602255561.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6852325219 + ... + 6852327634.

It is an arithmetic number, because the mean of its divisors is an integer number (1952913031695).

Almost surely, 2^{16555220646424} is an apocalyptic number.

It is an amenable number.

16555220646424 is a deficient number, since it is larger than the sum of its proper divisors (14691387860696).

16555220646424 is a wasteful number, since it uses less digits than its factorization.

16555220646424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13704653010 (or 13704653006 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 52.

The spelling of 16555220646424 in words is "sixteen trillion, five hundred fifty-five billion, two hundred twenty million, six hundred forty-six thousand, four hundred twenty-four".