20434350522445 has 32 divisors (see below), whose sum is σ = 25602511219200. Its totient is φ = 15627464987904.

The previous prime is 20434350522403. The next prime is 20434350522463. The reversal of 20434350522445 is 54422505343402.

It is a cyclic number.

It is not a de Polignac number, because 20434350522445 - 2²⁷ = 20434216304717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2192757496 + ... + 2192766814.

It is an arithmetic number, because the mean of its divisors is an integer number (800078475600).

Almost surely, 2^{20434350522445} is an apocalyptic number.

It is an amenable number.

20434350522445 is a deficient number, since it is larger than the sum of its proper divisors (5168160696755).

20434350522445 is a wasteful number, since it uses less digits than its factorization.

20434350522445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18589.

The product of its (nonzero) digits is 2304000, while the sum is 43.

Adding to 20434350522445 its reverse (54422505343402), we get a palindrome (74856855865847).

The spelling of 20434350522445 in words is "twenty trillion, four hundred thirty-four billion, three hundred fifty million, five hundred twenty-two thousand, four hundred forty-five".