20167003643 has 2 divisors, whose sum is σ = 20167003644. Its totient is φ = 20167003642.

The previous prime is 20167003621. The next prime is 20167003697. The reversal of 20167003643 is 34630076102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20167003643 - 2¹⁸ = 20166741499 is a prime.

It is not a weakly prime, because it can be changed into another prime (20167003613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10083501821 + 10083501822.

It is an arithmetic number, because the mean of its divisors is an integer number (10083501822).

Almost surely, 2^20167003643 is an apocalyptic number.

20167003643 is a deficient number, since it is larger than the sum of its proper divisors (1).

20167003643 is an equidigital number, since it uses as much as digits as its factorization.

20167003643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 20167003643 its reverse (34630076102), we get a palindrome (54797079745).

The spelling of 20167003643 in words is "twenty billion, one hundred sixty-seven million, three thousand, six hundred forty-three".