80638485656 has 16 divisors (see below), whose sum is σ = 159154906200. Its totient is φ = 38197177344.

The previous prime is 80638485623. The next prime is 80638485659. The reversal of 80638485656 is 65658483608.

It is a junction number, because it is equal to n+sod(n) for n = 80638485595 and 80638485604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80638485659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265258025 + ... + 265258328.

Almost surely, 2^80638485656 is an apocalyptic number.

It is an amenable number.

80638485656 is a deficient number, since it is larger than the sum of its proper divisors (78516420544).

80638485656 is a wasteful number, since it uses less digits than its factorization.

80638485656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530516378 (or 530516374 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 59.

The spelling of 80638485656 in words is "eighty billion, six hundred thirty-eight million, four hundred eighty-five thousand, six hundred fifty-six".