165054422505 has 32 divisors (see below), whose sum is σ = 306761580288. Its totient is φ = 74216505600.

The previous prime is 165054422471. The next prime is 165054422531. The reversal of 165054422505 is 505224450561.

165054422505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165054422505 - 2⁸ = 165054422249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12878406 + ... + 12891215.

It is an arithmetic number, because the mean of its divisors is an integer number (9586299384).

Almost surely, 2^165054422505 is an apocalyptic number.

165054422505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165054422505 is a deficient number, since it is larger than the sum of its proper divisors (141707157783).

165054422505 is a wasteful number, since it uses less digits than its factorization.

165054422505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25769697.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 165054422505 in words is "one hundred sixty-five billion, fifty-four million, four hundred twenty-two thousand, five hundred five".