1999996383672 has 384 divisors, whose sum is σ = 6610605825600. Its totient is φ = 558424129536.

The previous prime is 1999996383653. The next prime is 1999996383673. The reversal of 1999996383672 is 2763836999991.

1999996383672 is a `hidden beast` number, since 1 + 9 + 9 + 99 + 96 + 383 + 67 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1999996383591 and 1999996383600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999996383673) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 144157728 + ... + 144171600.

Almost surely, 2^{1999996383672} is an apocalyptic number.

1999996383672 is a gapful number since it is divisible by the number (12) 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 1999996383672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3305302912800).

1999996383672 is an abundant number, since it is smaller than the sum of its proper divisors (4610609441928).

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

1999996383672 is a wasteful number, since it uses less digits than its factorization.

1999996383672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14212 (or 14195 counting only the distinct ones).

The product of its digits is 2142770112, while the sum is 81.

The spelling of 1999996383672 in words is "one trillion, nine hundred ninety-nine billion, nine hundred ninety-six million, three hundred eighty-three thousand, six hundred seventy-two".