20413526453212 has 24 divisors (see below), whose sum is σ = 36176657908160. Its totient is φ = 10077344110080.

The previous prime is 20413526453191. The next prime is 20413526453213. The reversal of 20413526453212 is 21235462531402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413526453213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14329012 + ... + 15689092.

Almost surely, 2^{20413526453212} is an apocalyptic number.

It is an amenable number.

20413526453212 is a deficient number, since it is larger than the sum of its proper divisors (15763131454948).

20413526453212 is a wasteful number, since it uses less digits than its factorization.

20413526453212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407661 (or 1407659 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 20413526453212 its reverse (21235462531402), we get a palindrome (41648988984614).

The spelling of 20413526453212 in words is "twenty trillion, four hundred thirteen billion, five hundred twenty-six million, four hundred fifty-three thousand, two hundred twelve".