16368201216 has 120 divisors (see below), whose sum is σ = 47297095560. Its totient is φ = 5449445376.

The previous prime is 16368201193. The next prime is 16368201217. The reversal of 16368201216 is 61210286361.

It is a happy number.

16368201216 is a `hidden beast` number, since 1 + 636 + 8 + 2 + 0 + 1 + 2 + 16 = 666.

It is a super-2 number, since 2×16368201216² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16368201217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5108671 + ... + 5111873.

It is an arithmetic number, because the mean of its divisors is an integer number (394142463).

Almost surely, 2^16368201216 is an apocalyptic number.

16368201216 is a gapful number since it is divisible by the number (16) 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 16368201216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23648547780).

16368201216 is an abundant number, since it is smaller than the sum of its proper divisors (30928894344).

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

16368201216 is a wasteful number, since it uses less digits than its factorization.

16368201216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336 (or 4317 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 16368201216 its reverse (61210286361), we get a palindrome (77578487577).

The spelling of 16368201216 in words is "sixteen billion, three hundred sixty-eight million, two hundred one thousand, two hundred sixteen".