999999060000 has 480 divisors, whose sum is σ = 3437641202688. Its totient is φ = 253968000000.

The previous prime is 999999059929. The next prime is 999999060001. The reversal of 999999060000 is 60999999.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (999999060001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 346378557 + ... + 346381443.

Almost surely, 2^999999060000 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 999999060000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718820601344).

999999060000 is an abundant number, since it is smaller than the sum of its proper divisors (2437642142688).

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

999999060000 is a wasteful number, since it uses less digits than its factorization.

999999060000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194 (or 3171 counting only the distinct ones).

The product of its (nonzero) digits is 3188646, while the sum is 60.

It can be divided in two parts, 999 and 999060000, that added together give a palindrome (999060999).

The spelling of 999999060000 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, sixty thousand".