542342161243245 has 256 divisors, whose sum is σ = 984280082236416. Its totient is φ = 254900017152000.

The previous prime is 542342161243241. The next prime is 542342161243247.

542342161243245 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 542342161243245 - 2² = 542342161243241 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 542342161243194 and 542342161243203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542342161243241) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 20166653019 + ... + 20166679911.

It is an arithmetic number, because the mean of its divisors is an integer number (3844844071236).

Almost surely, 2^{542342161243245} is an apocalyptic number.

542342161243245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

542342161243245 is a deficient number, since it is larger than the sum of its proper divisors (441937920993171).

542342161243245 is a wasteful number, since it uses less digits than its factorization.

542342161243245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27245 (or 27223 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 48.

It can be divided in two parts, 5423421 and 61243245, that added together give a palindrome (66666666).

The spelling of 542342161243245 in words is "five hundred forty-two trillion, three hundred forty-two billion, one hundred sixty-one million, two hundred forty-three thousand, two hundred forty-five".