20898046365993 has 32 divisors (see below), whose sum is σ = 31471142505600. Its totient is φ = 13703810024448.

The previous prime is 20898046365979. The next prime is 20898046366009. The reversal of 20898046365993 is 39956364089802.

20898046365993 is a `hidden beast` number, since 2 + 0 + 89 + 80 + 463 + 6 + 5 + 9 + 9 + 3 = 666.

It is not a de Polignac number, because 20898046365993 - 2¹⁶ = 20898046300457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20898046565993) 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 31 ways as a sum of consecutive naturals, for example, 24049788 + ... + 24903581.

It is an arithmetic number, because the mean of its divisors is an integer number (983473203300).

Almost surely, 2^{20898046365993} is an apocalyptic number.

It is an amenable number.

20898046365993 is a deficient number, since it is larger than the sum of its proper divisors (10573096139607).

20898046365993 is a wasteful number, since it uses less digits than its factorization.

20898046365993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48953638 (or 48953632 counting only the distinct ones).

The product of its (nonzero) digits is 604661760, while the sum is 72.

The spelling of 20898046365993 in words is "twenty trillion, eight hundred ninety-eight billion, forty-six million, three hundred sixty-five thousand, nine hundred ninety-three".