20346513434045 has 4 divisors (see below), whose sum is σ = 24415816120860. Its totient is φ = 16277210747232.

The previous prime is 20346513433963. The next prime is 20346513434101. The reversal of 20346513434045 is 54043431564302.

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 13344715853764 + 7001797580281 = 3653042^2 + 2646091^2 .

It is a cyclic number.

It is not a de Polignac number, because 20346513434045 - 2¹⁶ = 20346513368509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20346513433987 and 20346513434005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2034651343400 + ... + 2034651343409.

It is an arithmetic number, because the mean of its divisors is an integer number (6103954030215).

Almost surely, 2^{20346513434045} is an apocalyptic number.

It is an amenable number.

20346513434045 is a deficient number, since it is larger than the sum of its proper divisors (4069302686815).

20346513434045 is an equidigital number, since it uses as much as digits as its factorization.

20346513434045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069302686814.

The product of its (nonzero) digits is 2073600, while the sum is 44.

Adding to 20346513434045 its reverse (54043431564302), we get a palindrome (74389944998347).

The spelling of 20346513434045 in words is "twenty trillion, three hundred forty-six billion, five hundred thirteen million, four hundred thirty-four thousand, forty-five".