99766816 has 12 divisors (see below), whose sum is σ = 196415982. Its totient is φ = 49883392.

The previous prime is 99766789. The next prime is 99766861. The reversal of 99766816 is 61866799.

99766816 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in only one way, i.e., 97219600 + 2547216 = 9860^2 + 1596^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558825 + ... + 1558888.

Almost surely, 2^99766816 is an apocalyptic number.

It is an amenable number.

99766816 is a deficient number, since it is larger than the sum of its proper divisors (96649166).

99766816 is a wasteful number, since it uses less digits than its factorization.

99766816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117723 (or 3117715 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 99766816 is about 9988.3339952166. Note that the first 3 decimals coincide. The cubic root of 99766816 is about 463.7978211524.

The spelling of 99766816 in words is "ninety-nine million, seven hundred sixty-six thousand, eight hundred sixteen".