155113051102550 has 24 divisors (see below), whose sum is σ = 293400279718200. Its totient is φ = 60993606534080.

The previous prime is 155113051102531. The next prime is 155113051102561. The reversal of 155113051102550 is 55201150311551.

It is a self number, because there is not a number n which added to its sum of digits gives 155113051102550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26290344695 + ... + 26290350594.

It is an arithmetic number, because the mean of its divisors is an integer number (12225011654925).

Almost surely, 2^{155113051102550} is an apocalyptic number.

155113051102550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155113051102550 is a deficient number, since it is larger than the sum of its proper divisors (138287228615650).

155113051102550 is a wasteful number, since it uses less digits than its factorization.

155113051102550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52580695360 (or 52580695355 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 155113051102550 in words is "one hundred fifty-five trillion, one hundred thirteen billion, fifty-one million, one hundred two thousand, five hundred fifty".