20512025342356 has 6 divisors (see below), whose sum is σ = 35896044349130. Its totient is φ = 10256012671176.

The previous prime is 20512025342279. The next prime is 20512025342371. The reversal of 20512025342356 is 65324352021502.

It can be written as a sum of positive squares in only one way, i.e., 20473507354756 + 38517987600 = 4524766^2 + 196260^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564003167791 + ... + 2564003167798.

Almost surely, 2^{20512025342356} is an apocalyptic number.

It is an amenable number.

20512025342356 is a deficient number, since it is larger than the sum of its proper divisors (15384019006774).

20512025342356 is a wasteful number, since it uses less digits than its factorization.

20512025342356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128006335593 (or 5128006335591 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 20512025342356 its reverse (65324352021502), we get a palindrome (85836377363858).

The spelling of 20512025342356 in words is "twenty trillion, five hundred twelve billion, twenty-five million, three hundred forty-two thousand, three hundred fifty-six".