155503241112 has 64 divisors (see below), whose sum is σ = 402293916000. Its totient is φ = 50030797824.

The previous prime is 155503241093. The next prime is 155503241119. The reversal of 155503241112 is 211142305551.

It is a self number, because there is not a number n which added to its sum of digits gives 155503241112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155503241119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2212788 + ... + 2281980.

Almost surely, 2^155503241112 is an apocalyptic number.

155503241112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155503241112 is an abundant number, since it is smaller than the sum of its proper divisors (246790674888).

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

155503241112 is a wasteful number, since it uses less digits than its factorization.

155503241112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72460 (or 72456 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 155503241112 its reverse (211142305551), we get a palindrome (366645546663).

The spelling of 155503241112 in words is "one hundred fifty-five billion, five hundred three million, two hundred forty-one thousand, one hundred twelve".