16545200221344 has 48 divisors (see below), whose sum is σ = 43438509539712. Its totient is φ = 5514132269568.

The previous prime is 16545200221337. The next prime is 16545200221373. The reversal of 16545200221344 is 44312200254561.

It is a tau number, because it is divible by the number of its divisors (48).

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, 14031469 + ... + 15164844.

It is an arithmetic number, because the mean of its divisors is an integer number (904968948744).

Almost surely, 2^{16545200221344} is an apocalyptic number.

It is an amenable number.

16545200221344 is an abundant number, since it is smaller than the sum of its proper divisors (26893309318368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16545200221344 is a wasteful number, since it uses less digits than its factorization.

16545200221344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29202229 (or 29202221 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 16545200221344 in words is "sixteen trillion, five hundred forty-five billion, two hundred million, two hundred twenty-one thousand, three hundred forty-four".