155017225144 has 16 divisors (see below), whose sum is σ = 292945939200. Its totient is φ = 76898308032.

The previous prime is 155017225133. The next prime is 155017225147. The reversal of 155017225144 is 441522710551.

It is a happy number.

155017225144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155017225147) 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, 76286989 + ... + 76289020.

It is an arithmetic number, because the mean of its divisors is an integer number (18309121200).

Almost surely, 2^155017225144 is an apocalyptic number.

It is an amenable number.

155017225144 is a deficient number, since it is larger than the sum of its proper divisors (137928714056).

155017225144 is a wasteful number, since it uses less digits than its factorization.

155017225144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152576142 (or 152576138 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

Adding to 155017225144 its reverse (441522710551), we get a palindrome (596539935695).

The spelling of 155017225144 in words is "one hundred fifty-five billion, seventeen million, two hundred twenty-five thousand, one hundred forty-four".