20045351443352 has 32 divisors (see below), whose sum is σ = 38917715770800. Its totient is φ = 9667945392000.

The previous prime is 20045351443331. The next prime is 20045351443421. The reversal of 20045351443352 is 25334415354002.

It is a super-2 number, since 2×20045351443352² (a number of 27 digits) contains 22 as substring.

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, 40471274 + ... + 40963577.

Almost surely, 2^{20045351443352} is an apocalyptic number.

It is an amenable number.

20045351443352 is a deficient number, since it is larger than the sum of its proper divisors (18872364327448).

20045351443352 is a wasteful number, since it uses less digits than its factorization.

20045351443352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81435947 (or 81435943 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 20045351443352 its reverse (25334415354002), we get a palindrome (45379766797354).

The spelling of 20045351443352 in words is "twenty trillion, forty-five billion, three hundred fifty-one million, four hundred forty-three thousand, three hundred fifty-two".