165999105004 has 12 divisors (see below), whose sum is σ = 290541182904. Its totient is φ = 82987338464.

The previous prime is 165999104939. The next prime is 165999105017. The reversal of 165999105004 is 400501999561.

165999105004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 3022897 + ... + 3077320.

It is an arithmetic number, because the mean of its divisors is an integer number (24211765242).

Almost surely, 2^165999105004 is an apocalyptic number.

It is an amenable number.

165999105004 is a deficient number, since it is larger than the sum of its proper divisors (124542077900).

165999105004 is a wasteful number, since it uses less digits than its factorization.

165999105004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6107024 (or 6107022 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 49.

The spelling of 165999105004 in words is "one hundred sixty-five billion, nine hundred ninety-nine million, one hundred five thousand, four".