20022573251663 has 2 divisors, whose sum is σ = 20022573251664. Its totient is φ = 20022573251662.

The previous prime is 20022573251591. The next prime is 20022573251677. The reversal of 20022573251663 is 36615237522002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20022573251663 - 2¹⁰ = 20022573250639 is a prime.

It is a super-2 number, since 2×20022573251663² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022573251063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011286625831 + 10011286625832.

It is an arithmetic number, because the mean of its divisors is an integer number (10011286625832).

Almost surely, 2^{20022573251663} is an apocalyptic number.

20022573251663 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022573251663 is an equidigital number, since it uses as much as digits as its factorization.

20022573251663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 20022573251663 in words is "twenty trillion, twenty-two billion, five hundred seventy-three million, two hundred fifty-one thousand, six hundred sixty-three".