20372022673 has 2 divisors, whose sum is σ = 20372022674. Its totient is φ = 20372022672.

The previous prime is 20372022637. The next prime is 20372022683. The reversal of 20372022673 is 37622027302.

Together with previous prime (20372022637) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19627169409 + 744853264 = 140097^2 + 27292^2 .

It is a cyclic number.

It is not a de Polignac number, because 20372022673 - 2¹⁷ = 20371891601 is a prime.

It is not a weakly prime, because it can be changed into another prime (20372022683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10186011336 + 10186011337.

It is an arithmetic number, because the mean of its divisors is an integer number (10186011337).

Almost surely, 2^20372022673 is an apocalyptic number.

It is an amenable number.

20372022673 is a deficient number, since it is larger than the sum of its proper divisors (1).

20372022673 is an equidigital number, since it uses as much as digits as its factorization.

20372022673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 34.

Adding to 20372022673 its reverse (37622027302), we get a palindrome (57994049975).

The spelling of 20372022673 in words is "twenty billion, three hundred seventy-two million, twenty-two thousand, six hundred seventy-three".