9999993999996 has 1152 divisors, whose sum is σ = 38306053094400. Its totient is φ = 2209904363520.

The previous prime is 9999993999973. The next prime is 9999994000001. The reversal of 9999993999996 is 6999993999999.

It is a Harshad number since it is a multiple of its sum of digits (108).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 531990070 + ... + 532008866.

It is an arithmetic number, because the mean of its divisors is an integer number (33251782200).

Almost surely, 2^{9999993999996} 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 9999993999996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19153026547200).

9999993999996 is an abundant number, since it is smaller than the sum of its proper divisors (28306059094404).

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

9999993999996 is a wasteful number, since it uses less digits than its factorization.

9999993999996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18904 (or 18889 counting only the distinct ones).

The product of its digits is 564859072962, while the sum is 108.

It can be divided in two parts, 999999 and 3999996, that multiplied together give a square (3999992000004 = 1999998²).

The spelling of 9999993999996 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred ninety-three million, nine hundred ninety-nine thousand, nine hundred ninety-six".