6667219753216 has 243 divisors, whose sum is σ = 15557364862753. Its totient is φ = 2848981442560.

The previous prime is 6667219753189. The next prime is 6667219753217. The reversal of 6667219753216 is 6123579127666.

It is a happy number.

The square root of 6667219753216 is 2582096.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5190742022400 + 1476477730816 = 2278320^2 + 1215104^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6667219753217) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7725630801 + ... + 7725631663.

Almost surely, 2^{6667219753216} is an apocalyptic number.

6667219753216 is the 2582096-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6667219753216

6667219753216 is an abundant number, since it is smaller than the sum of its proper divisors (8890145109537).

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

6667219753216 is an frugal number, since it uses more digits than its factorization.

6667219753216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 893 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 61.

The spelling of 6667219753216 in words is "six trillion, six hundred sixty-seven billion, two hundred nineteen million, seven hundred fifty-three thousand, two hundred sixteen".