155523413122142 has 8 divisors (see below), whose sum is σ = 251230128889656. Its totient is φ = 71780036825592.

The previous prime is 155523413122139. The next prime is 155523413122159. The reversal of 155523413122142 is 241221314325551.

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

It is a self number, because there is not a number n which added to its sum of digits gives 155523413122142.

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, 2990834867708 + ... + 2990834867759.

It is an arithmetic number, because the mean of its divisors is an integer number (31403766111207).

Almost surely, 2^{155523413122142} is an apocalyptic number.

155523413122142 is a deficient number, since it is larger than the sum of its proper divisors (95706715767514).

155523413122142 is a wasteful number, since it uses less digits than its factorization.

155523413122142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5981669735482.

The product of its digits is 288000, while the sum is 41.

Adding to 155523413122142 its reverse (241221314325551), we get a palindrome (396744727447693).

The spelling of 155523413122142 in words is "one hundred fifty-five trillion, five hundred twenty-three billion, four hundred thirteen million, one hundred twenty-two thousand, one hundred forty-two".