20629198666168 has 16 divisors (see below), whose sum is σ = 38723552435880. Its totient is φ = 10302918016608.

The previous prime is 20629198666129. The next prime is 20629198666187. The reversal of 20629198666168 is 86166689192602.

It is a junction number, because it is equal to n+sod(n) for n = 20629198666097 and 20629198666106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460157055 + ... + 1460171182.

Almost surely, 2^{20629198666168} is an apocalyptic number.

It is an amenable number.

20629198666168 is a deficient number, since it is larger than the sum of its proper divisors (18094353769712).

20629198666168 is a wasteful number, since it uses less digits than its factorization.

20629198666168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920329126 (or 2920329122 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 70.

The spelling of 20629198666168 in words is "twenty trillion, six hundred twenty-nine billion, one hundred ninety-eight million, six hundred sixty-six thousand, one hundred sixty-eight".