67816493056 has 117 divisors (see below), whose sum is σ = 147321597699. Its totient is φ = 31199920128.

The previous prime is 67816493053. The next prime is 67816493077. The reversal of 67816493056 is 65039461876.

The square root of 67816493056 is 260416.

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

It can be written as a sum of positive squares in 4 ways, for example, as 53645971456 + 14170521600 = 231616^2 + 119040^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67816492988 and 67816493006.

It is not an unprimeable number, because it can be changed into a prime (67816493053) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 216665956 + ... + 216666268.

Almost surely, 2^67816493056 is an apocalyptic number.

67816493056 is the 260416-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67816493056

67816493056 is an abundant number, since it is smaller than the sum of its proper divisors (79505104643).

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

67816493056 is an frugal number, since it uses more digits than its factorization.

67816493056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 67816493056 in words is "sixty-seven billion, eight hundred sixteen million, four hundred ninety-three thousand, fifty-six".