155555120441422 has 8 divisors (see below), whose sum is σ = 251281348405416. Its totient is φ = 71794670972952.

The previous prime is 155555120441407. The next prime is 155555120441491. The reversal of 155555120441422 is 224144021555551.

It is a happy number.

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

It is a super-2 number, since 2×155555120441422² (a number of 29 digits) contains 22 as substring.

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, 2991444623848 + ... + 2991444623899.

It is an arithmetic number, because the mean of its divisors is an integer number (31410168550677).

Almost surely, 2^{155555120441422} is an apocalyptic number.

155555120441422 is a deficient number, since it is larger than the sum of its proper divisors (95726227963994).

155555120441422 is a wasteful number, since it uses less digits than its factorization.

155555120441422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982889247762.

The product of its (nonzero) digits is 1600000, while the sum is 46.

Adding to 155555120441422 its reverse (224144021555551), we get a palindrome (379699141996973).

The spelling of 155555120441422 in words is "one hundred fifty-five trillion, five hundred fifty-five billion, one hundred twenty million, four hundred forty-one thousand, four hundred twenty-two".