20622242642046 has 8 divisors (see below), whose sum is σ = 41244485284104. Its totient is φ = 6874080880680.

The previous prime is 20622242641993. The next prime is 20622242642059. The reversal of 20622242642046 is 64024624222602.

It is a sphenic number, since it is the product of 3 distinct primes.

20622242642046 is an admirable number.

It is a super-2 number, since 2×20622242642046² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 20622242641989 and 20622242642007.

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, 1718520220165 + ... + 1718520220176.

It is an arithmetic number, because the mean of its divisors is an integer number (5155560660513).

Almost surely, 2^{20622242642046} is an apocalyptic number.

20622242642046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20622242642046 is a wasteful number, since it uses less digits than its factorization.

20622242642046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437040440346.

The product of its (nonzero) digits is 884736, while the sum is 42.

Adding to 20622242642046 its reverse (64024624222602), we get a palindrome (84646866864648).

The spelling of 20622242642046 in words is "twenty trillion, six hundred twenty-two billion, two hundred forty-two million, six hundred forty-two thousand, forty-six".