99196991040 has 448 divisors, whose sum is σ = 382113275904. Its totient is φ = 21284093952.

The previous prime is 99196991027. The next prime is 99196991063. The reversal of 99196991040 is 4019969199.

It is a tau number, because it is divible by the number of its divisors (448).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 55633989 + ... + 55635771.

Almost surely, 2^99196991040 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 99196991040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191056637952).

99196991040 is an abundant number, since it is smaller than the sum of its proper divisors (282916284864).

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

99196991040 is a wasteful number, since it uses less digits than its factorization.

99196991040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314 (or 2304 counting only the distinct ones).

The product of its (nonzero) digits is 1417176, while the sum is 57.

The spelling of 99196991040 in words is "ninety-nine billion, one hundred ninety-six million, nine hundred ninety-one thousand, forty".