165071000204 has 24 divisors (see below), whose sum is σ = 315618197328. Its totient is φ = 74917355840.

The previous prime is 165071000197. The next prime is 165071000209. The reversal of 165071000204 is 402000170561.

It is not an unprimeable number, because it can be changed into a prime (165071000209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2843867 + ... + 2901330.

It is an arithmetic number, because the mean of its divisors is an integer number (13150758222).

Almost surely, 2^165071000204 is an apocalyptic number.

It is an amenable number.

165071000204 is a deficient number, since it is larger than the sum of its proper divisors (150547197124).

165071000204 is a wasteful number, since it uses less digits than its factorization.

165071000204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745865 (or 5745863 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 165071000204 its reverse (402000170561), we get a palindrome (567071170765).

The spelling of 165071000204 in words is "one hundred sixty-five billion, seventy-one million, two hundred four", and thus it is an aban number.