78882035685566 has 32 divisors (see below), whose sum is σ = 128846394230400. Its totient is φ = 36076450606560.

The previous prime is 78882035685559. The next prime is 78882035685617. The reversal of 78882035685566 is 66558653028887.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283483781 + ... + 283761903.

It is an arithmetic number, because the mean of its divisors is an integer number (4026449819700).

Almost surely, 2^{78882035685566} is an apocalyptic number.

78882035685566 is a deficient number, since it is larger than the sum of its proper divisors (49964358544834).

78882035685566 is a wasteful number, since it uses less digits than its factorization.

78882035685566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535544.

The product of its (nonzero) digits is 4644864000, while the sum is 77.

The spelling of 78882035685566 in words is "seventy-eight trillion, eight hundred eighty-two billion, thirty-five million, six hundred eighty-five thousand, five hundred sixty-six".