201650022340 has 96 divisors (see below), whose sum is σ = 484611259104. Its totient is φ = 69822259200.

The previous prime is 201650022317. The next prime is 201650022341. The reversal of 201650022340 is 43220056102.

It can be written as a sum of positive squares in 16 ways, for example, as 25194577984 + 176455444356 = 158728^2 + 420066^2 .

It is not an unprimeable number, because it can be changed into a prime (201650022341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1141990 + ... + 1306690.

It is an arithmetic number, because the mean of its divisors is an integer number (5048033949).

Almost surely, 2^201650022340 is an apocalyptic number.

201650022340 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 201650022340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242305629552).

201650022340 is an abundant number, since it is smaller than the sum of its proper divisors (282961236764).

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

201650022340 is a wasteful number, since it uses less digits than its factorization.

201650022340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165017 (or 165015 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 201650022340 its reverse (43220056102), we get a palindrome (244870078442).

The spelling of 201650022340 in words is "two hundred one billion, six hundred fifty million, twenty-two thousand, three hundred forty".