99244897920000 has 5280 divisors, whose sum is σ = 466566650880000. Its totient is φ = 20692869120000.

The previous prime is 99244897919941. The next prime is 99244897920011. The reversal of 99244897920000 is 2979844299.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 99244897920000.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 498718079901 + ... + 498718080099.

It is an arithmetic number, because the mean of its divisors is an integer number (88364896000).

Almost surely, 2^{99244897920000} is an apocalyptic number.

99244897920000 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99244897920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233283325440000).

99244897920000 is an abundant number, since it is smaller than the sum of its proper divisors (367321752960000).

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

99244897920000 is a wasteful number, since it uses less digits than its factorization.

99244897920000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 99244897920000 in words is "ninety-nine trillion, two hundred forty-four billion, eight hundred ninety-seven million, nine hundred twenty thousand".