20440342425001 has 8 divisors (see below), whose sum is σ = 20729192540544. Its totient is φ = 20151518919840.

The previous prime is 20440342424981. The next prime is 20440342425053. The reversal of 20440342425001 is 10052424304402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20440342425001 - 2¹⁵ = 20440342392233 is a prime.

It is a super-2 number, since 2×20440342425001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20440342125001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5102941 + ... + 8180506.

It is an arithmetic number, because the mean of its divisors is an integer number (2591149067568).

Almost surely, 2^{20440342425001} is an apocalyptic number.

It is an amenable number.

20440342425001 is a deficient number, since it is larger than the sum of its proper divisors (288850115543).

20440342425001 is a wasteful number, since it uses less digits than its factorization.

20440342425001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13305191.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 20440342425001 its reverse (10052424304402), we get a palindrome (30492766729403).

The spelling of 20440342425001 in words is "twenty trillion, four hundred forty billion, three hundred forty-two million, four hundred twenty-five thousand, one".