20346242725601 has 4 divisors (see below), whose sum is σ = 21911338319892. Its totient is φ = 18781147131312.

The previous prime is 20346242725577. The next prime is 20346242725607. The reversal of 20346242725601 is 10652724264302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2965890174976 + 17380352550625 = 1722176^2 + 4168975^2 .

It is a cyclic number.

It is not a de Polignac number, because 20346242725601 - 2²⁶ = 20346175616737 is a prime.

It is a super-2 number, since 2×20346242725601² (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 (20346242725607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782547797126 + ... + 782547797151.

It is an arithmetic number, because the mean of its divisors is an integer number (5477834579973).

Almost surely, 2^{20346242725601} is an apocalyptic number.

It is an amenable number.

20346242725601 is a deficient number, since it is larger than the sum of its proper divisors (1565095594291).

20346242725601 is a wasteful number, since it uses less digits than its factorization.

20346242725601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565095594290.

The product of its (nonzero) digits is 967680, while the sum is 44.

Adding to 20346242725601 its reverse (10652724264302), we get a palindrome (30998966989903).

The spelling of 20346242725601 in words is "twenty trillion, three hundred forty-six billion, two hundred forty-two million, seven hundred twenty-five thousand, six hundred one".