1999994005005 has 16 divisors (see below), whose sum is σ = 3201596070720. Its totient is φ = 1066128248448.

The previous prime is 1999994004989. The next prime is 1999994005013. The reversal of 1999994005005 is 5005004999991.

It is not a de Polignac number, because 1999994005005 - 2⁴ = 1999994004989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1999994005005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33420415 + ... + 33480204.

It is an arithmetic number, because the mean of its divisors is an integer number (200099754420).

Almost surely, 2^{1999994005005} is an apocalyptic number.

1999994005005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1999994005005 is a deficient number, since it is larger than the sum of its proper divisors (1201602065715).

1999994005005 is a wasteful number, since it uses less digits than its factorization.

1999994005005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66902620.

The product of its (nonzero) digits is 5904900, while the sum is 60.

The spelling of 1999994005005 in words is "one trillion, nine hundred ninety-nine billion, nine hundred ninety-four million, five thousand, five".