20244521434501 has 32 divisors (see below), whose sum is σ = 25079500712448. Its totient is φ = 15912930712320.

The previous prime is 20244521434453. The next prime is 20244521434531. The reversal of 20244521434501 is 10543412544202.

It is a cyclic number.

It is not a de Polignac number, because 20244521434501 - 2¹³ = 20244521426309 is a prime.

It is a super-2 number, since 2×20244521434501² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244521434531) 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, 15565815 + ... + 16816171.

It is an arithmetic number, because the mean of its divisors is an integer number (783734397264).

Almost surely, 2^{20244521434501} is an apocalyptic number.

It is an amenable number.

20244521434501 is a deficient number, since it is larger than the sum of its proper divisors (4834979277947).

20244521434501 is a wasteful number, since it uses less digits than its factorization.

20244521434501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251541.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 20244521434501 its reverse (10543412544202), we get a palindrome (30787933978703).

The spelling of 20244521434501 in words is "twenty trillion, two hundred forty-four billion, five hundred twenty-one million, four hundred thirty-four thousand, five hundred one".