99550303633920 has 1280 divisors, whose sum is σ = 359313059635200. Its totient is φ = 23380387430400.

The previous prime is 99550303633829. The next prime is 99550303633967. The reversal of 99550303633920 is 2933630305599.

It is a tau number, because it is divible by the number of its divisors (1280).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 36451958955 + ... + 36451961685.

It is an arithmetic number, because the mean of its divisors is an integer number (280713327840).

Almost surely, 2^{99550303633920} 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 99550303633920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179656529817600).

99550303633920 is an abundant number, since it is smaller than the sum of its proper divisors (259762756001280).

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

99550303633920 is a wasteful number, since it uses less digits than its factorization.

99550303633920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 17714700, while the sum is 57.

The spelling of 99550303633920 in words is "ninety-nine trillion, five hundred fifty billion, three hundred three million, six hundred thirty-three thousand, nine hundred twenty".