89766616678 has 16 divisors (see below), whose sum is σ = 135997670160. Its totient is φ = 44434741536.

The previous prime is 89766616669. The next prime is 89766616679. The reversal of 89766616678 is 87661666798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89766616679) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 94701 + ... + 434167.

It is an arithmetic number, because the mean of its divisors is an integer number (8499854385).

Almost surely, 2^89766616678 is an apocalyptic number.

89766616678 is a deficient number, since it is larger than the sum of its proper divisors (46231053482).

89766616678 is a wasteful number, since it uses less digits than its factorization.

89766616678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340791.

The product of its digits is 219469824, while the sum is 70.

The spelling of 89766616678 in words is "eighty-nine billion, seven hundred sixty-six million, six hundred sixteen thousand, six hundred seventy-eight".