20654314220 has 48 divisors (see below), whose sum is σ = 46082439648. Its totient is φ = 7749166080.

The previous prime is 20654314193. The next prime is 20654314223. The reversal of 20654314220 is 2241345602.

It is not an unprimeable number, because it can be changed into a prime (20654314223) 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, 4046 + ... + 203285.

It is an arithmetic number, because the mean of its divisors is an integer number (960050826).

Almost surely, 2^20654314220 is an apocalyptic number.

20654314220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20654314220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23041219824).

20654314220 is an abundant number, since it is smaller than the sum of its proper divisors (25428125428).

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

20654314220 is a wasteful number, since it uses less digits than its factorization.

20654314220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207650 (or 207648 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20654314220 its reverse (2241345602), we get a palindrome (22895659822).

The spelling of 20654314220 in words is "twenty billion, six hundred fifty-four million, three hundred fourteen thousand, two hundred twenty".