20946222622253 has 4 divisors (see below), whose sum is σ = 20946509720220. Its totient is φ = 20945935524288.

The previous prime is 20946222622159. The next prime is 20946222622301. The reversal of 20946222622253 is 35222622264902.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10834248737764 + 10111973884489 = 3291542^2 + 3179933^2 .

It is a cyclic number.

It is not a de Polignac number, because 20946222622253 - 2¹⁸ = 20946222360109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20946222622198 and 20946222622207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20946222624253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143439518 + ... + 143585471.

It is an arithmetic number, because the mean of its divisors is an integer number (5236627430055).

Almost surely, 2^{20946222622253} is an apocalyptic number.

It is an amenable number.

20946222622253 is a deficient number, since it is larger than the sum of its proper divisors (287097967).

20946222622253 is an equidigital number, since it uses as much as digits as its factorization.

20946222622253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287097966.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 20946222622253 in words is "twenty trillion, nine hundred forty-six billion, two hundred twenty-two million, six hundred twenty-two thousand, two hundred fifty-three".