99556144 has 40 divisors (see below), whose sum is σ = 203424480. Its totient is φ = 47106048.

The previous prime is 99556139. The next prime is 99556151. The reversal of 99556144 is 44165599.

It is a super-2 number, since 2×99556144² = 19822851616297472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99556144.

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, 34302 + ... + 37090.

It is an arithmetic number, because the mean of its divisors is an integer number (5085612).

Almost surely, 2^99556144 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 99556144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101712240).

99556144 is an abundant number, since it is smaller than the sum of its proper divisors (103868336).

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

99556144 is a wasteful number, since it uses less digits than its factorization.

99556144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917 (or 2911 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 99556144 is about 9977.7825191773. The cubic root of 99556144 is about 463.4711324631.

The spelling of 99556144 in words is "ninety-nine million, five hundred fifty-six thousand, one hundred forty-four".