16253322318 has 24 divisors (see below), whose sum is σ = 35315306208. Its totient is φ = 5402424192.

The previous prime is 16253322317. The next prime is 16253322329. The reversal of 16253322318 is 81322335261.

16253322318 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 332 + 2 + 318 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16253322317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1272630 + ... + 1285337.

It is an arithmetic number, because the mean of its divisors is an integer number (1471471092).

Almost surely, 2^16253322318 is an apocalyptic number.

16253322318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16253322318 is an abundant number, since it is smaller than the sum of its proper divisors (19061983890).

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

16253322318 is a wasteful number, since it uses less digits than its factorization.

16253322318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558328 (or 2558325 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

Adding to 16253322318 its reverse (81322335261), we get a palindrome (97575657579).

The spelling of 16253322318 in words is "sixteen billion, two hundred fifty-three million, three hundred twenty-two thousand, three hundred eighteen".