20350200172 has 12 divisors (see below), whose sum is σ = 35614126296. Its totient is φ = 10174735520.

The previous prime is 20350200137. The next prime is 20350200191. The reversal of 20350200172 is 27100205302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63672 + ... + 211552.

It is an arithmetic number, because the mean of its divisors is an integer number (2967843858).

Almost surely, 2^20350200172 is an apocalyptic number.

It is an amenable number.

20350200172 is a deficient number, since it is larger than the sum of its proper divisors (15263926124).

20350200172 is a wasteful number, since it uses less digits than its factorization.

20350200172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182288 (or 182286 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

Adding to 20350200172 its reverse (27100205302), we get a palindrome (47450405474).

The spelling of 20350200172 in words is "twenty billion, three hundred fifty million, two hundred thousand, one hundred seventy-two".