20325340641 has 16 divisors (see below), whose sum is σ = 29180952000. Its totient is φ = 12536997888.

The previous prime is 20325340639. The next prime is 20325340657. The reversal of 20325340641 is 14604352302.

It is not a de Polignac number, because 20325340641 - 2¹ = 20325340639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20325340599 and 20325340608.

It is not an unprimeable number, because it can be changed into a prime (20325340621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3374416 + ... + 3380433.

It is an arithmetic number, because the mean of its divisors is an integer number (1823809500).

Almost surely, 2^20325340641 is an apocalyptic number.

It is an amenable number.

20325340641 is a deficient number, since it is larger than the sum of its proper divisors (8855611359).

20325340641 is a wasteful number, since it uses less digits than its factorization.

20325340641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754928.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20325340641 its reverse (14604352302), we get a palindrome (34929692943).

The spelling of 20325340641 in words is "twenty billion, three hundred twenty-five million, three hundred forty thousand, six hundred forty-one".