20603044350 has 144 divisors (see below), whose sum is σ = 64024152192. Its totient is φ = 4652470080.

The previous prime is 20603044349. The next prime is 20603044477. The reversal of 20603044350 is 5344030602.

20603044350 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 304 + 4 + 350 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 222049 + ... + 300851.

It is an arithmetic number, because the mean of its divisors is an integer number (444612168).

Almost surely, 2^20603044350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20603044350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32012076096).

20603044350 is an abundant number, since it is smaller than the sum of its proper divisors (43421107842).

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

20603044350 is a wasteful number, since it uses less digits than its factorization.

20603044350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78911 (or 78903 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 20603044350 its reverse (5344030602), we get a palindrome (25947074952).

The spelling of 20603044350 in words is "twenty billion, six hundred three million, forty-four thousand, three hundred fifty".