16216402312 has 64 divisors (see below), whose sum is σ = 34345267200. Its totient is φ = 7111368000.

The previous prime is 16216402309. The next prime is 16216402313. The reversal of 16216402312 is 21320461261.

It is not an unprimeable number, because it can be changed into a prime (16216402313) 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, 893989 + ... + 911947.

It is an arithmetic number, because the mean of its divisors is an integer number (536644800).

Almost surely, 2^16216402312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16216402312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17172633600).

16216402312 is an abundant number, since it is smaller than the sum of its proper divisors (18128864888).

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

16216402312 is a wasteful number, since it uses less digits than its factorization.

16216402312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18338 (or 18334 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 16216402312 its reverse (21320461261), we get a palindrome (37536863573).

The spelling of 16216402312 in words is "sixteen billion, two hundred sixteen million, four hundred two thousand, three hundred twelve".