165045612645142 has 4 divisors (see below), whose sum is σ = 247568418967716. Its totient is φ = 82522806322570.

The previous prime is 165045612645091. The next prime is 165045612645167. The reversal of 165045612645142 is 241546216540561.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 165045612645142.

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 as a sum of consecutive naturals, namely, 41261403161284 + ... + 41261403161287.

It is an arithmetic number, because the mean of its divisors is an integer number (61892104741929).

Almost surely, 2^{165045612645142} is an apocalyptic number.

165045612645142 is a deficient number, since it is larger than the sum of its proper divisors (82522806322574).

165045612645142 is an equidigital number, since it uses as much as digits as its factorization.

165045612645142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82522806322573.

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 165045612645142 in words is "one hundred sixty-five trillion, forty-five billion, six hundred twelve million, six hundred forty-five thousand, one hundred forty-two".