165153442553524 has 24 divisors (see below), whose sum is σ = 293758219209896. Its totient is φ = 81222538320000.

The previous prime is 165153442553509. The next prime is 165153442553531. The reversal of 165153442553524 is 425355244351561.

It can be written as a sum of positive squares in 4 ways, for example, as 11261527872400 + 153891914681124 = 3355820^2 + 12405318^2 .

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 7 ways as a sum of consecutive naturals, for example, 42757174 + ... + 46459474.

Almost surely, 2^{165153442553524} is an apocalyptic number.

It is an amenable number.

165153442553524 is a deficient number, since it is larger than the sum of its proper divisors (128604776656372).

165153442553524 is a wasteful number, since it uses less digits than its factorization.

165153442553524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885187 (or 3885185 counting only the distinct ones).

The product of its digits is 43200000, while the sum is 55.

The spelling of 165153442553524 in words is "one hundred sixty-five trillion, one hundred fifty-three billion, four hundred forty-two million, five hundred fifty-three thousand, five hundred twenty-four".