99065556 has 18 divisors (see below), whose sum is σ = 250415802. Its totient is φ = 33021840.

The previous prime is 99065521. The next prime is 99065557. The reversal of 99065556 is 65556099.

99065556 is a `hidden beast` number, since 9 + 90 + 6 + 5 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 97416900 + 1648656 = 9870^2 + 1284^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99065557) 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 5 ways as a sum of consecutive naturals, for example, 1375875 + ... + 1375946.

It is an arithmetic number, because the mean of its divisors is an integer number (13911989).

Almost surely, 2^99065556 is an apocalyptic number.

It is an amenable number.

99065556 is an abundant number, since it is smaller than the sum of its proper divisors (151350246).

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

99065556 is a wasteful number, since it uses less digits than its factorization.

99065556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751831 (or 2751826 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 45.

The square root of 99065556 is about 9953.1681388390. The cubic root of 99065556 is about 462.7085882594.

The spelling of 99065556 in words is "ninety-nine million, sixty-five thousand, five hundred fifty-six".