16538296320 has 1344 divisors, whose sum is σ = 77285819520. Its totient is φ = 3170893824.

The previous prime is 16538296283. The next prime is 16538296339. The reversal of 16538296320 is 2369283561.

16538296320 is a `hidden beast` number, since 1 + 6 + 5 + 3 + 8 + 2 + 9 + 632 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 570286066 + ... + 570286094.

It is an arithmetic number, because the mean of its divisors is an integer number (57504330).

Almost surely, 2^16538296320 is an apocalyptic number.

16538296320 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 16538296320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38642909760).

16538296320 is an abundant number, since it is smaller than the sum of its proper divisors (60747523200).

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

16538296320 is a wasteful number, since it uses less digits than its factorization.

16538296320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 16538296320 in words is "sixteen billion, five hundred thirty-eight million, two hundred ninety-six thousand, three hundred twenty".