16365240320 has 360 divisors, whose sum is σ = 46857334272. Its totient is φ = 5449973760.

The previous prime is 16365240319. The next prime is 16365240337. The reversal of 16365240320 is 2304256361.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128860097 + ... + 128860223.

Almost surely, 2^16365240320 is an apocalyptic number.

16365240320 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 16365240320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23428667136).

16365240320 is an abundant number, since it is smaller than the sum of its proper divisors (30492093952).

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

16365240320 is a wasteful number, since it uses less digits than its factorization.

16365240320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 16365240320 its reverse (2304256361), we get a palindrome (18669496681).

The spelling of 16365240320 in words is "sixteen billion, three hundred sixty-five million, two hundred forty thousand, three hundred twenty".