78663236230656 has 4800 divisors, whose sum is σ = 327724464291840. Its totient is φ = 18332349235200.

The previous prime is 78663236230639. The next prime is 78663236230679. The reversal of 78663236230656 is 65603263236687.

78663236230656 is a `hidden beast` number, since 78 + 6 + 6 + 323 + 6 + 230 + 6 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 78663236230593 and 78663236230602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 1484212004326 + ... + 1484212004378.

Almost surely, 2^{78663236230656} 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 78663236230656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163862232145920).

78663236230656 is an abundant number, since it is smaller than the sum of its proper divisors (249061228061184).

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

78663236230656 is a wasteful number, since it uses less digits than its factorization.

78663236230656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 63.

The spelling of 78663236230656 in words is "seventy-eight trillion, six hundred sixty-three billion, two hundred thirty-six million, two hundred thirty thousand, six hundred fifty-six".