99867986080 has 96 divisors (see below), whose sum is σ = 238255153920. Its totient is φ = 39556408320.

The previous prime is 99867986077. The next prime is 99867986107. The reversal of 99867986080 is 8068976899.

It is a happy number.

It is a super-2 number, since 2×99867986080² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8823625 + ... + 8834935.

It is an arithmetic number, because the mean of its divisors is an integer number (2481824520).

Almost surely, 2^99867986080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99867986080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119127576960).

99867986080 is an abundant number, since it is smaller than the sum of its proper divisors (138387167840).

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

99867986080 is a wasteful number, since it uses less digits than its factorization.

99867986080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11862 (or 11854 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 70.

The spelling of 99867986080 in words is "ninety-nine billion, eight hundred sixty-seven million, nine hundred eighty-six thousand, eighty".