20622362189197 has 4 divisors (see below), whose sum is σ = 20676774754720. Its totient is φ = 20567949623676.

The previous prime is 20622362189159. The next prime is 20622362189201. The reversal of 20622362189197 is 79198126322602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20622362189197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20622362189497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27206282193 + ... + 27206282950.

It is an arithmetic number, because the mean of its divisors is an integer number (5169193688680).

Almost surely, 2^{20622362189197} is an apocalyptic number.

It is an amenable number.

20622362189197 is a deficient number, since it is larger than the sum of its proper divisors (54412565523).

20622362189197 is an equidigital number, since it uses as much as digits as its factorization.

20622362189197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54412565522.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 20622362189197 in words is "twenty trillion, six hundred twenty-two billion, three hundred sixty-two million, one hundred eighty-nine thousand, one hundred ninety-seven".