20337664772443 has 2 divisors, whose sum is σ = 20337664772444. Its totient is φ = 20337664772442.

The previous prime is 20337664772423. The next prime is 20337664772479. The reversal of 20337664772443 is 34427746673302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20337664772443 - 2¹³ = 20337664764251 is a prime.

It is not a weakly prime, because it can be changed into another prime (20337664772423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10168832386221 + 10168832386222.

It is an arithmetic number, because the mean of its divisors is an integer number (10168832386222).

Almost surely, 2^{20337664772443} is an apocalyptic number.

20337664772443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20337664772443 is an equidigital number, since it uses as much as digits as its factorization.

20337664772443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85349376, while the sum is 58.

The spelling of 20337664772443 in words is "twenty trillion, three hundred thirty-seven billion, six hundred sixty-four million, seven hundred seventy-two thousand, four hundred forty-three".