165055505650506 has 24 divisors (see below), whose sum is σ = 357731914026240. Its totient is φ = 55001324686056.

The previous prime is 165055505650499. The next prime is 165055505650507. The reversal of 165055505650506 is 605056505550561.

165055505650506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (165055505650507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1431373866 + ... + 1431489173.

It is an arithmetic number, because the mean of its divisors is an integer number (14905496417760).

Almost surely, 2^{165055505650506} is an apocalyptic number.

165055505650506 is an abundant number, since it is smaller than the sum of its proper divisors (192676408375734).

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

165055505650506 is a wasteful number, since it uses less digits than its factorization.

165055505650506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862866250 (or 2862866247 counting only the distinct ones).

The product of its (nonzero) digits is 16875000, while the sum is 54.

The spelling of 165055505650506 in words is "one hundred sixty-five trillion, fifty-five billion, five hundred five million, six hundred fifty thousand, five hundred six".