155150215522242 has 16 divisors (see below), whose sum is σ = 313046452559520. Its totient is φ = 51259068254912.

The previous prime is 155150215522241. The next prime is 155150215522303. The reversal of 155150215522242 is 242225512051551.

155150215522242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155150215522194 and 155150215522203.

It is not an unprimeable number, because it can be changed into a prime (155150215522241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114417562392 + ... + 114417563747.

It is an arithmetic number, because the mean of its divisors is an integer number (19565403284970).

Almost surely, 2^{155150215522242} is an apocalyptic number.

155150215522242 is an abundant number, since it is smaller than the sum of its proper divisors (157896237037278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155150215522242 is a wasteful number, since it uses less digits than its factorization.

155150215522242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228835126257.

The product of its (nonzero) digits is 400000, while the sum is 42.

Adding to 155150215522242 its reverse (242225512051551), we get a palindrome (397375727573793).

The spelling of 155150215522242 in words is "one hundred fifty-five trillion, one hundred fifty billion, two hundred fifteen million, five hundred twenty-two thousand, two hundred forty-two".