99544806502400 has 312 divisors, whose sum is σ = 291204175739904. Its totient is φ = 33028684185600.

The previous prime is 99544806502399. The next prime is 99544806502403. The reversal of 99544806502400 is 420560844599.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (99544806502403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19980899 + ... + 24460701.

Almost surely, 2^{99544806502400} 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 99544806502400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145602087869952).

99544806502400 is an abundant number, since it is smaller than the sum of its proper divisors (191659369237504).

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

99544806502400 is a wasteful number, since it uses less digits than its factorization.

99544806502400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479875 (or 4479848 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 99544806502400 in words is "ninety-nine trillion, five hundred forty-four billion, eight hundred six million, five hundred two thousand, four hundred".