20302443536 has 20 divisors (see below), whose sum is σ = 39425601600. Its totient is φ = 10128094752.

The previous prime is 20302443487. The next prime is 20302443547. The reversal of 20302443536 is 63534420302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438196 + ... + 1452243.

It is an arithmetic number, because the mean of its divisors is an integer number (1971280080).

Almost surely, 2^20302443536 is an apocalyptic number.

It is an amenable number.

20302443536 is a deficient number, since it is larger than the sum of its proper divisors (19123158064).

20302443536 is a wasteful number, since it uses less digits than its factorization.

20302443536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890886 (or 2890880 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 20302443536 its reverse (63534420302), we get a palindrome (83836863838).

The spelling of 20302443536 in words is "twenty billion, three hundred two million, four hundred forty-three thousand, five hundred thirty-six".