165063573805 has 32 divisors (see below), whose sum is σ = 214629408000. Its totient is φ = 121142241792.

The previous prime is 165063573799. The next prime is 165063573821. The reversal of 165063573805 is 508375360561.

It is not a de Polignac number, because 165063573805 - 2³ = 165063573797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12113286 + ... + 12126904.

It is an arithmetic number, because the mean of its divisors is an integer number (6707169000).

Almost surely, 2^165063573805 is an apocalyptic number.

It is an amenable number.

165063573805 is a deficient number, since it is larger than the sum of its proper divisors (49565834195).

165063573805 is a wasteful number, since it uses less digits than its factorization.

165063573805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14773.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 165063573805 in words is "one hundred sixty-five billion, sixty-three million, five hundred seventy-three thousand, eight hundred five".