20622242642052 has 24 divisors (see below), whose sum is σ = 48118753632096. Its totient is φ = 6874054099648.

The previous prime is 20622242641993. The next prime is 20622242642059. The reversal of 20622242642052 is 25024624222602.

It is a self number, because there is not a number n which added to its sum of digits gives 20622242642052.

It is not an unprimeable number, because it can be changed into a prime (20622242642059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5718 + ... + 6422189.

It is an arithmetic number, because the mean of its divisors is an integer number (2004948068004).

Almost surely, 2^{20622242642052} is an apocalyptic number.

It is an amenable number.

20622242642052 is an abundant number, since it is smaller than the sum of its proper divisors (27496510990044).

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

20622242642052 is a wasteful number, since it uses less digits than its factorization.

20622242642052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695267 (or 6695265 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 20622242642052 its reverse (25024624222602), we get a palindrome (45646866864654).

The spelling of 20622242642052 in words is "twenty trillion, six hundred twenty-two billion, two hundred forty-two million, six hundred forty-two thousand, fifty-two".