20668448460196 has 12 divisors (see below), whose sum is σ = 36169816632880. Its totient is φ = 10334215136520.

The previous prime is 20668448460173. The next prime is 20668448460221. The reversal of 20668448460196 is 69106484486602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7800175 + ... + 10108393.

Almost surely, 2^{20668448460196} is an apocalyptic number.

It is an amenable number.

20668448460196 is a deficient number, since it is larger than the sum of its proper divisors (15501368172684).

20668448460196 is a wasteful number, since it uses less digits than its factorization.

20668448460196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546794 (or 4546792 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 64.

The spelling of 20668448460196 in words is "twenty trillion, six hundred sixty-eight billion, four hundred forty-eight million, four hundred sixty thousand, one hundred ninety-six".