155112136531502 has 8 divisors (see below), whose sum is σ = 232668368152896. Its totient is φ = 77556013813872.

The previous prime is 155112136531493. The next prime is 155112136531543. The reversal of 155112136531502 is 205135631211551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 155112136531502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23566823 + ... + 29421410.

It is an arithmetic number, because the mean of its divisors is an integer number (29083546019112).

Almost surely, 2^{155112136531502} is an apocalyptic number.

155112136531502 is a deficient number, since it is larger than the sum of its proper divisors (77556231621394).

155112136531502 is a wasteful number, since it uses less digits than its factorization.

155112136531502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54451882.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 155112136531502 in words is "one hundred fifty-five trillion, one hundred twelve billion, one hundred thirty-six million, five hundred thirty-one thousand, five hundred two".