20364433435 has 4 divisors (see below), whose sum is σ = 24437320128. Its totient is φ = 16291546744.

The previous prime is 20364433403. The next prime is 20364433457. The reversal of 20364433435 is 53433446302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20364433435 - 2⁵ = 20364433403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20364433394 and 20364433403.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2036443339 + ... + 2036443348.

It is an arithmetic number, because the mean of its divisors is an integer number (6109330032).

Almost surely, 2^20364433435 is an apocalyptic number.

20364433435 is a deficient number, since it is larger than the sum of its proper divisors (4072886693).

20364433435 is an equidigital number, since it uses as much as digits as its factorization.

20364433435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072886692.

The product of its (nonzero) digits is 311040, while the sum is 37.

Adding to 20364433435 its reverse (53433446302), we get a palindrome (73797879737).

The spelling of 20364433435 in words is "twenty billion, three hundred sixty-four million, four hundred thirty-three thousand, four hundred thirty-five".