20225104605696 has 160 divisors (see below), whose sum is σ = 55747544928768. Its totient is φ = 6509153157120.

The previous prime is 20225104605689. The next prime is 20225104605701. The reversal of 20225104605696 is 69650640152202.

It is a super-2 number, since 2×20225104605696² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 20127250 + ... + 21108206.

Almost surely, 2^{20225104605696} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20225104605696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27873772464384).

20225104605696 is an abundant number, since it is smaller than the sum of its proper divisors (35522440323072).

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

20225104605696 is an equidigital number, since it uses as much as digits as its factorization.

20225104605696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981442 (or 981426 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

Adding to 20225104605696 its reverse (69650640152202), we get a palindrome (89875744757898).

The spelling of 20225104605696 in words is "twenty trillion, two hundred twenty-five billion, one hundred four million, six hundred five thousand, six hundred ninety-six".