16218875316 has 48 divisors (see below), whose sum is σ = 45130788864. Its totient is φ = 4432487136.

The previous prime is 16218875311. The next prime is 16218875333. The reversal of 16218875316 is 61357881261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16218875311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4195500 + ... + 4199363.

It is an arithmetic number, because the mean of its divisors is an integer number (940224768).

Almost surely, 2^16218875316 is an apocalyptic number.

It is an amenable number.

16218875316 is an abundant number, since it is smaller than the sum of its proper divisors (28911913548).

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

16218875316 is a wasteful number, since it uses less digits than its factorization.

16218875316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8394900 (or 8394898 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The spelling of 16218875316 in words is "sixteen billion, two hundred eighteen million, eight hundred seventy-five thousand, three hundred sixteen".