155311226112 has 288 divisors, whose sum is σ = 492525379584. Its totient is φ = 42513408000.

The previous prime is 155311226111. The next prime is 155311226141. The reversal of 155311226112 is 211622113551.

It is a self number, because there is not a number n which added to its sum of digits gives 155311226112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155311226111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16827643 + ... + 16836869.

It is an arithmetic number, because the mean of its divisors is an integer number (1710157568).

Almost surely, 2^155311226112 is an apocalyptic number.

155311226112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155311226112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246262689792).

155311226112 is an abundant number, since it is smaller than the sum of its proper divisors (337214153472).

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

155311226112 is a wasteful number, since it uses less digits than its factorization.

155311226112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9385 (or 9371 counting only the distinct ones).

The product of its digits is 3600, while the sum is 30.

Adding to 155311226112 its reverse (211622113551), we get a palindrome (366933339663).

The spelling of 155311226112 in words is "one hundred fifty-five billion, three hundred eleven million, two hundred twenty-six thousand, one hundred twelve".