20345143340045 has 8 divisors (see below), whose sum is σ = 24414257508120. Its totient is φ = 16276057672000.

The previous prime is 20345143340017. The next prime is 20345143340059. The reversal of 20345143340045 is 54004334154302.

It can be written as a sum of positive squares in 4 ways, for example, as 2692759567369 + 17652383772676 = 1640963^2 + 4201474^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20345143340045 - 2¹⁸ = 20345143077901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20345143339990 and 20345143340008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5521706 + ... + 8436795.

It is an arithmetic number, because the mean of its divisors is an integer number (3051782188515).

Almost surely, 2^{20345143340045} is an apocalyptic number.

It is an amenable number.

20345143340045 is a deficient number, since it is larger than the sum of its proper divisors (4069114168075).

20345143340045 is a wasteful number, since it uses less digits than its factorization.

20345143340045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14250015.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 20345143340045 its reverse (54004334154302), we get a palindrome (74349477494347).

The spelling of 20345143340045 in words is "twenty trillion, three hundred forty-five billion, one hundred forty-three million, three hundred forty thousand, forty-five".