99617396919040 has 1152 divisors, whose sum is σ = 333214036936704. Its totient is φ = 27534753792000.

The previous prime is 99617396919031. The next prime is 99617396919043. The reversal of 99617396919040 is 4091969371699.

It is not an unprimeable number, because it can be changed into a prime (99617396919043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3360782620 + ... + 3360812260.

It is an arithmetic number, because the mean of its divisors is an integer number (289248295952).

Almost surely, 2^{99617396919040} 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 99617396919040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166607018468352).

99617396919040 is an abundant number, since it is smaller than the sum of its proper divisors (233596640017664).

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

99617396919040 is a wasteful number, since it uses less digits than its factorization.

99617396919040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29797 (or 29783 counting only the distinct ones).

The product of its (nonzero) digits is 178564176, while the sum is 73.

The spelling of 99617396919040 in words is "ninety-nine trillion, six hundred seventeen billion, three hundred ninety-six million, nine hundred nineteen thousand, forty".