99556600 has 144 divisors (see below), whose sum is σ = 276622920. Its totient is φ = 32851200.

The previous prime is 99556577. The next prime is 99556601. The reversal of 99556600 is 665599.

99556600 = T₂₂₄₀ + T₂₂₄₁ + ... + T₂₂₇₈.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99556601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1687371 + ... + 1687429.

Almost surely, 2^99556600 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 99556600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138311460).

99556600 is an abundant number, since it is smaller than the sum of its proper divisors (177066320).

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

99556600 is a wasteful number, since it uses less digits than its factorization.

99556600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 99556600 is about 9977.8053699198. The cubic root of 99556600 is about 463.4718400789.

The spelling of 99556600 in words is "ninety-nine million, five hundred fifty-six thousand, six hundred".