82666178448 has 80 divisors (see below), whose sum is σ = 248667048576. Its totient is φ = 23173263360.

The previous prime is 82666178423. The next prime is 82666178459. The reversal of 82666178448 is 84487166628.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 82666178391 and 82666178400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2303233 + ... + 2338848.

Almost surely, 2^82666178448 is an apocalyptic number.

It is an amenable number.

82666178448 is an abundant number, since it is smaller than the sum of its proper divisors (166000870128).

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

82666178448 is a wasteful number, since it uses less digits than its factorization.

82666178448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642152 (or 4642146 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 60.

The spelling of 82666178448 in words is "eighty-two billion, six hundred sixty-six million, one hundred seventy-eight thousand, four hundred forty-eight".