98887722888666 has 16 divisors (see below), whose sum is σ = 198479272989888. Its totient is φ = 32845269760800.

The previous prime is 98887722888653. The next prime is 98887722888677. The reversal of 98887722888666 is 66688822778889.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 98887722888666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29326132030 + ... + 29326135401.

It is an arithmetic number, because the mean of its divisors is an integer number (12404954561868).

Almost surely, 2^{98887722888666} is an apocalyptic number.

98887722888666 is an abundant number, since it is smaller than the sum of its proper divisors (99591550101222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98887722888666 is a wasteful number, since it uses less digits than its factorization.

98887722888666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58652267717.

The product of its digits is 99883155456, while the sum is 93.

The spelling of 98887722888666 in words is "ninety-eight trillion, eight hundred eighty-seven billion, seven hundred twenty-two million, eight hundred eighty-eight thousand, six hundred sixty-six".