20450041513212 has 48 divisors (see below), whose sum is σ = 47740436583840. Its totient is φ = 6813299254272.

The previous prime is 20450041513177. The next prime is 20450041513219. The reversal of 20450041513212 is 21231514005402.

It is a self number, because there is not a number n which added to its sum of digits gives 20450041513212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450041513219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319315258 + ... + 319379294.

It is an arithmetic number, because the mean of its divisors is an integer number (994592428830).

Almost surely, 2^{20450041513212} is an apocalyptic number.

It is an amenable number.

20450041513212 is an abundant number, since it is smaller than the sum of its proper divisors (27290395070628).

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

20450041513212 is a wasteful number, since it uses less digits than its factorization.

20450041513212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76830 (or 76828 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 20450041513212 its reverse (21231514005402), we get a palindrome (41681555518614).

The spelling of 20450041513212 in words is "twenty trillion, four hundred fifty billion, forty-one million, five hundred thirteen thousand, two hundred twelve".