20064600443 has 2 divisors, whose sum is σ = 20064600444. Its totient is φ = 20064600442.

The previous prime is 20064600433. The next prime is 20064600467. The reversal of 20064600443 is 34400646002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20064600443 - 2¹⁰ = 20064599419 is a prime.

It is a super-3 number, since 3×20064600443³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20064600433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10032300221 + 10032300222.

It is an arithmetic number, because the mean of its divisors is an integer number (10032300222).

Almost surely, 2^20064600443 is an apocalyptic number.

20064600443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20064600443 is an equidigital number, since it uses as much as digits as its factorization.

20064600443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

The spelling of 20064600443 in words is "twenty billion, sixty-four million, six hundred thousand, four hundred forty-three".