20345014405063 has 4 divisors (see below), whose sum is σ = 21541779958320. Its totient is φ = 19148248851808.

The previous prime is 20345014405061. The next prime is 20345014405081. The reversal of 20345014405063 is 36050441054302.

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

It is a cyclic number.

It is not a de Polignac number, because 20345014405063 - 2¹ = 20345014405061 is a prime.

It is a super-2 number, since 2×20345014405063² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345014405061) 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, 598382776603 + ... + 598382776636.

It is an arithmetic number, because the mean of its divisors is an integer number (5385444989580).

Almost surely, 2^{20345014405063} is an apocalyptic number.

20345014405063 is a deficient number, since it is larger than the sum of its proper divisors (1196765553257).

20345014405063 is a wasteful number, since it uses less digits than its factorization.

20345014405063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196765553256.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 20345014405063 its reverse (36050441054302), we get a palindrome (56395455459365).

The spelling of 20345014405063 in words is "twenty trillion, three hundred forty-five billion, fourteen million, four hundred five thousand, sixty-three".