20452521112512 has 56 divisors (see below), whose sum is σ = 54338501494992. Its totient is φ = 6789218611200.

The previous prime is 20452521112489. The next prime is 20452521112627. The reversal of 20452521112512 is 21521112525402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220956939 + ... + 221049482.

Almost surely, 2^{20452521112512} is an apocalyptic number.

It is an amenable number.

20452521112512 is an abundant number, since it is smaller than the sum of its proper divisors (33885980382480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20452521112512 is a wasteful number, since it uses less digits than its factorization.

20452521112512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442006677 (or 442006667 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

Adding to 20452521112512 its reverse (21521112525402), we get a palindrome (41973633637914).

The spelling of 20452521112512 in words is "twenty trillion, four hundred fifty-two billion, five hundred twenty-one million, one hundred twelve thousand, five hundred twelve".