20629198666097 has 32 divisors (see below), whose sum is σ = 24508545245184. Its totient is φ = 16991177414400.

The previous prime is 20629198666093. The next prime is 20629198666117. The reversal of 20629198666097 is 79066689192602.

It is not a de Polignac number, because 20629198666097 - 2² = 20629198666093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20629198666097.

It is not an unprimeable number, because it can be changed into a prime (20629198666093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38322473 + ... + 38857049.

It is an arithmetic number, because the mean of its divisors is an integer number (765892038912).

Almost surely, 2^{20629198666097} is an apocalyptic number.

It is an amenable number.

20629198666097 is a deficient number, since it is larger than the sum of its proper divisors (3879346579087).

20629198666097 is a wasteful number, since it uses less digits than its factorization.

20629198666097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535869.

The product of its (nonzero) digits is 211631616, while the sum is 71.

The spelling of 20629198666097 in words is "twenty trillion, six hundred twenty-nine billion, one hundred ninety-eight million, six hundred sixty-six thousand, ninety-seven".