155441420522242 has 8 divisors (see below), whose sum is σ = 234706250855232. Its totient is φ = 77206003570500.

The previous prime is 155441420522123. The next prime is 155441420522243. The reversal of 155441420522242 is 242225024144551.

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

It is not an unprimeable number, because it can be changed into a prime (155441420522243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257353344934 + ... + 257353345537.

It is an arithmetic number, because the mean of its divisors is an integer number (29338281356904).

Almost surely, 2^{155441420522242} is an apocalyptic number.

155441420522242 is a deficient number, since it is larger than the sum of its proper divisors (79264830332990).

155441420522242 is a wasteful number, since it uses less digits than its factorization.

155441420522242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514706690624.

The product of its (nonzero) digits is 1024000, while the sum is 43.

Adding to 155441420522242 its reverse (242225024144551), we get a palindrome (397666444666793).

The spelling of 155441420522242 in words is "one hundred fifty-five trillion, four hundred forty-one billion, four hundred twenty million, five hundred twenty-two thousand, two hundred forty-two".