20346641034445 has 16 divisors (see below), whose sum is σ = 27793672497792. Its totient is φ = 14154185066560.

The previous prime is 20346641034443. The next prime is 20346641034469. The reversal of 20346641034445 is 54443014664302.

It is not a de Polignac number, because 20346641034445 - 2¹ = 20346641034443 is a prime.

It is a super-2 number, since 2×20346641034445² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20346641034395 and 20346641034404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346641034443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8042149342 + ... + 8042151871.

It is an arithmetic number, because the mean of its divisors is an integer number (1737104531112).

Almost surely, 2^{20346641034445} is an apocalyptic number.

It is an amenable number.

20346641034445 is a deficient number, since it is larger than the sum of its proper divisors (7447031463347).

20346641034445 is a wasteful number, since it uses less digits than its factorization.

20346641034445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16084301252.

The product of its (nonzero) digits is 3317760, while the sum is 46.

Adding to 20346641034445 its reverse (54443014664302), we get a palindrome (74789655698747).

The spelling of 20346641034445 in words is "twenty trillion, three hundred forty-six billion, six hundred forty-one million, thirty-four thousand, four hundred forty-five".