20400005336 has 16 divisors (see below), whose sum is σ = 38328559440. Its totient is φ = 10179056160.

The previous prime is 20400005317. The next prime is 20400005357. The reversal of 20400005336 is 63350000402.

It is a congruent number.

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, 2614175 + ... + 2621966.

It is an arithmetic number, because the mean of its divisors is an integer number (2395534965).

Almost surely, 2^20400005336 is an apocalyptic number.

It is an amenable number.

20400005336 is a deficient number, since it is larger than the sum of its proper divisors (17928554104).

20400005336 is a wasteful number, since it uses less digits than its factorization.

20400005336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5236634 (or 5236630 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20400005336 its reverse (63350000402), we get a palindrome (83750005738).

The spelling of 20400005336 in words is "twenty billion, four hundred million, five thousand, three hundred thirty-six".