155912525212 has 24 divisors (see below), whose sum is σ = 284728453632. Its totient is φ = 74561982000.

The previous prime is 155912525203. The next prime is 155912525243. The reversal of 155912525212 is 212525219551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1638337 + ... + 1730887.

It is an arithmetic number, because the mean of its divisors is an integer number (11863685568).

Almost surely, 2^155912525212 is an apocalyptic number.

It is an amenable number.

155912525212 is a deficient number, since it is larger than the sum of its proper divisors (128815928420).

155912525212 is a wasteful number, since it uses less digits than its factorization.

155912525212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110889 (or 110887 counting only the distinct ones).

The product of its digits is 90000, while the sum is 40.

The spelling of 155912525212 in words is "one hundred fifty-five billion, nine hundred twelve million, five hundred twenty-five thousand, two hundred twelve".