80687664055 has 16 divisors (see below), whose sum is σ = 97438178880. Its totient is φ = 64141741312.

The previous prime is 80687664011. The next prime is 80687664119. The reversal of 80687664055 is 55046678608.

It is a cyclic number.

It is not a de Polignac number, because 80687664055 - 2⁹ = 80687663543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80687663987 and 80687664005.

It is a congruent number.

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, 2704761 + ... + 2734429.

It is an arithmetic number, because the mean of its divisors is an integer number (6089886180).

Almost surely, 2^80687664055 is an apocalyptic number.

80687664055 is a deficient number, since it is larger than the sum of its proper divisors (16750514825).

80687664055 is a wasteful number, since it uses less digits than its factorization.

80687664055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33098.

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 80687664055 in words is "eighty billion, six hundred eighty-seven million, six hundred sixty-four thousand, fifty-five".