165673516075 has 12 divisors (see below), whose sum is σ = 205460567440. Its totient is φ = 132522420960.

The previous prime is 165673516037. The next prime is 165673516087. The reversal of 165673516075 is 570615376561.

165673516075 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 165673516075 - 2⁷ = 165673515947 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 201540 + ... + 609889.

Almost surely, 2^165673516075 is an apocalyptic number.

165673516075 is a deficient number, since it is larger than the sum of its proper divisors (39787051365).

165673516075 is an equidigital number, since it uses as much as digits as its factorization.

165673516075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819606 (or 819601 counting only the distinct ones).

The product of its (nonzero) digits is 3969000, while the sum is 52.

The spelling of 165673516075 in words is "one hundred sixty-five billion, six hundred seventy-three million, five hundred sixteen thousand, seventy-five".