99786666668888 has 32 divisors (see below), whose sum is σ = 189926950003200. Its totient is φ = 49139749905312.

The previous prime is 99786666668837. The next prime is 99786666668893. The reversal of 99786666668888 is 88886666668799.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13908020 + ... + 19824387.

It is an arithmetic number, because the mean of its divisors is an integer number (5935217187600).

Almost surely, 2^{99786666668888} is an apocalyptic number.

It is an amenable number.

99786666668888 is a deficient number, since it is larger than the sum of its proper divisors (90140283334312).

99786666668888 is a wasteful number, since it uses less digits than its factorization.

99786666668888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33737999 (or 33737995 counting only the distinct ones).

The product of its digits is 866843099136, while the sum is 101.

The spelling of 99786666668888 in words is "ninety-nine trillion, seven hundred eighty-six billion, six hundred sixty-six million, six hundred sixty-eight thousand, eight hundred eighty-eight".