80494768656 has 315 divisors, whose sum is σ = 243753997053. Its totient is φ = 25738715520.

The previous prime is 80494768639. The next prime is 80494768661. The reversal of 80494768656 is 65686749408.

The square root of 80494768656 is 283716.

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

80494768656 is a `hidden beast` number, since 80 + 4 + 9 + 476 + 86 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 72027824400 + 8466944256 = 268380^2 + 92016^2 .

It is a super-3 number, since 3×80494768656³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80494768593 and 80494768602.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 1133729101 + ... + 1133729171.

Almost surely, 2^80494768656 is an apocalyptic number.

80494768656 is the 283716-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80494768656

80494768656 is an abundant number, since it is smaller than the sum of its proper divisors (163259228397).

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

80494768656 is an frugal number, since it uses more digits than its factorization.

80494768656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 80494768656 in words is "eighty billion, four hundred ninety-four million, seven hundred sixty-eight thousand, six hundred fifty-six".