20004350512765 has 32 divisors (see below), whose sum is σ = 24883971503616. Its totient is φ = 15428424199680.

The previous prime is 20004350512759. The next prime is 20004350512777. The reversal of 20004350512765 is 56721505340002.

It is not a de Polignac number, because 20004350512765 - 2¹⁷ = 20004350381693 is a prime.

It is a super-2 number, since 2×20004350512765² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12506550 + ... + 14015080.

It is an arithmetic number, because the mean of its divisors is an integer number (777624109488).

Almost surely, 2^{20004350512765} is an apocalyptic number.

It is an amenable number.

20004350512765 is a deficient number, since it is larger than the sum of its proper divisors (4879620990851).

20004350512765 is a wasteful number, since it uses less digits than its factorization.

20004350512765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509429.

The product of its (nonzero) digits is 252000, while the sum is 40.

Adding to 20004350512765 its reverse (56721505340002), we get a palindrome (76725855852767).

The spelling of 20004350512765 in words is "twenty trillion, four billion, three hundred fifty million, five hundred twelve thousand, seven hundred sixty-five".