16545234223320 has 384 divisors, whose sum is σ = 57793801060800. Its totient is φ = 3773312040960.

The previous prime is 16545234223291. The next prime is 16545234223333. The reversal of 16545234223320 is 2332243254561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 589686732 + ... + 589714788.

Almost surely, 2^{16545234223320} is an apocalyptic number.

16545234223320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16545234223320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28896900530400).

16545234223320 is an abundant number, since it is smaller than the sum of its proper divisors (41248566837480).

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

16545234223320 is a wasteful number, since it uses less digits than its factorization.

16545234223320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30499 (or 30484 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

Adding to 16545234223320 its reverse (2332243254561), we get a palindrome (18877477477881).

The spelling of 16545234223320 in words is "sixteen trillion, five hundred forty-five billion, two hundred thirty-four million, two hundred twenty-three thousand, three hundred twenty".