99445820544 has 384 divisors, whose sum is σ = 344524078080. Its totient is φ = 26918369280.

The previous prime is 99445820519. The next prime is 99445820557. The reversal of 99445820544 is 44502854499.

99445820544 is a `hidden beast` number, since 9 + 9 + 4 + 4 + 582 + 0 + 54 + 4 = 666.

99445820544 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19842999 + ... + 19848009.

It is an arithmetic number, because the mean of its divisors is an integer number (897198120).

Almost surely, 2^99445820544 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 99445820544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172262039040).

99445820544 is an abundant number, since it is smaller than the sum of its proper divisors (245078257536).

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

99445820544 is a wasteful number, since it uses less digits than its factorization.

99445820544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5168 (or 5153 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 99445820544 in words is "ninety-nine billion, four hundred forty-five million, eight hundred twenty thousand, five hundred forty-four".