20452363642236 has 48 divisors (see below), whose sum is σ = 48332936492288. Its totient is φ = 6730757856000.

The previous prime is 20452363642211. The next prime is 20452363642259. The reversal of 20452363642236 is 63224636325402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34327885 + ... + 34918596.

Almost surely, 2^{20452363642236} is an apocalyptic number.

It is an amenable number.

20452363642236 is an abundant number, since it is smaller than the sum of its proper divisors (27880572850052).

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

20452363642236 is a wasteful number, since it uses less digits than its factorization.

20452363642236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69246802 (or 69246800 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 48.

Adding to 20452363642236 its reverse (63224636325402), we get a palindrome (83676999967638).

The spelling of 20452363642236 in words is "twenty trillion, four hundred fifty-two billion, three hundred sixty-three million, six hundred forty-two thousand, two hundred thirty-six".