12998163921005 has 16 divisors (see below), whose sum is σ = 16101718963200. Its totient is φ = 10062614945280.

The previous prime is 12998163920999. The next prime is 12998163921007. The reversal of 12998163921005 is 50012936189921.

It is not a de Polignac number, because 12998163921005 - 2¹⁸ = 12998163658861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12998163921007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1280576 + ... + 5257014.

It is an arithmetic number, because the mean of its divisors is an integer number (1006357435200).

Almost surely, 2^{12998163921005} is an apocalyptic number.

It is an amenable number.

12998163921005 is a deficient number, since it is larger than the sum of its proper divisors (3103555042195).

12998163921005 is a wasteful number, since it uses less digits than its factorization.

12998163921005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997564.

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 12998163921005 in words is "twelve trillion, nine hundred ninety-eight billion, one hundred sixty-three million, nine hundred twenty-one thousand, five".