20247505104364 has 12 divisors (see below), whose sum is σ = 35433505694664. Its totient is φ = 10123646334464.

The previous prime is 20247505104317. The next prime is 20247505104427. The reversal of 20247505104364 is 46340150574202.

It is a super-2 number, since 2×20247505104364² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20247505104364.

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, 26124757 + ... + 26888620.

It is an arithmetic number, because the mean of its divisors is an integer number (2952792141222).

Almost surely, 2^{20247505104364} is an apocalyptic number.

It is an amenable number.

20247505104364 is a deficient number, since it is larger than the sum of its proper divisors (15186000590300).

20247505104364 is a wasteful number, since it uses less digits than its factorization.

20247505104364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53108864 (or 53108862 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

Adding to 20247505104364 its reverse (46340150574202), we get a palindrome (66587655678566).

The spelling of 20247505104364 in words is "twenty trillion, two hundred forty-seven billion, five hundred five million, one hundred four thousand, three hundred sixty-four".