20522340450 has 72 divisors (see below), whose sum is σ = 56626914708. Its totient is φ = 5324711040.

The previous prime is 20522340431. The next prime is 20522340451. The reversal of 20522340450 is 5404322502.

It is a happy number.

20522340450 is a `hidden beast` number, since 205 + 2 + 2 + 3 + 4 + 0 + 450 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 11650395969 + 8871944481 = 107937^2 + 94191^2 .

It is not an unprimeable number, because it can be changed into a prime (20522340451) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 599637 + ... + 632936.

Almost surely, 2^20522340450 is an apocalyptic number.

20522340450 is an abundant number, since it is smaller than the sum of its proper divisors (36104574258).

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

20522340450 is a wasteful number, since it uses less digits than its factorization.

20522340450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232628 (or 1232620 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 20522340450 its reverse (5404322502), we get a palindrome (25926662952).

The spelling of 20522340450 in words is "twenty billion, five hundred twenty-two million, three hundred forty thousand, four hundred fifty".