155253312432122 has 16 divisors (see below), whose sum is σ = 232943850081000. Its totient is φ = 77605363461120.

The previous prime is 155253312432107. The next prime is 155253312432161. The reversal of 155253312432122 is 221234213352551.

It can be written as a sum of positive squares in 4 ways, for example, as 149478523751881 + 5774788680241 = 12226141^2 + 2403079^2 .

It is a super-2 number, since 2×155253312432122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155253312432122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320284754 + ... + 320769122.

Almost surely, 2^{155253312432122} is an apocalyptic number.

155253312432122 is a deficient number, since it is larger than the sum of its proper divisors (77690537648878).

155253312432122 is a wasteful number, since it uses less digits than its factorization.

155253312432122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528001.

The product of its digits is 432000, while the sum is 41.

Adding to 155253312432122 its reverse (221234213352551), we get a palindrome (376487525784673).

The spelling of 155253312432122 in words is "one hundred fifty-five trillion, two hundred fifty-three billion, three hundred twelve million, four hundred thirty-two thousand, one hundred twenty-two".