78588036166656 has 176 divisors, whose sum is σ = 220818015771200. Its totient is φ = 24780386598912.

The previous prime is 78588036166631. The next prime is 78588036166657. The reversal of 78588036166656 is 65666163088587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78588036166657) 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, 38281350 + ... + 40281978.

Almost surely, 2^{78588036166656} is an apocalyptic number.

78588036166656 is a gapful number since it is divisible by the number (76) 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 78588036166656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110409007885600).

78588036166656 is an abundant number, since it is smaller than the sum of its proper divisors (142229979604544).

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

78588036166656 is a wasteful number, since it uses less digits than its factorization.

78588036166656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001344 (or 2001326 counting only the distinct ones).

The product of its (nonzero) digits is 2090188800, while the sum is 75.

The spelling of 78588036166656 in words is "seventy-eight trillion, five hundred eighty-eight billion, thirty-six million, one hundred sixty-six thousand, six hundred fifty-six".