99619958522448 has 2880 divisors, whose sum is σ = 390352707256320. Its totient is φ = 23798722461696.

The previous prime is 99619958522443. The next prime is 99619958522531. The reversal of 99619958522448 is 84422585991699.

99619958522448 is a `hidden beast` number, since 9 + 9 + 6 + 1 + 9 + 9 + 585 + 2 + 24 + 4 + 8 = 666.

It is a super-2 number, since 2×99619958522448² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99619958522443) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 784409122161 + ... + 784409122287.

It is an arithmetic number, because the mean of its divisors is an integer number (135539134464).

Almost surely, 2^{99619958522448} 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 99619958522448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195176353628160).

99619958522448 is an abundant number, since it is smaller than the sum of its proper divisors (290732748733872).

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

99619958522448 is a wasteful number, since it uses less digits than its factorization.

99619958522448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 329 counting only the distinct ones).

The product of its digits is 4031078400, while the sum is 81.

The spelling of 99619958522448 in words is "ninety-nine trillion, six hundred nineteen billion, nine hundred fifty-eight million, five hundred twenty-two thousand, four hundred forty-eight".