165000927091 has 96 divisors (see below), whose sum is σ = 232003650816. Its totient is φ = 115305120000.

The previous prime is 165000927041. The next prime is 165000927101. The reversal of 165000927091 is 190729000561.

It is not a de Polignac number, because 165000927091 - 2⁷ = 165000926963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165000927041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35474116 + ... + 35478766.

It is an arithmetic number, because the mean of its divisors is an integer number (2416704696).

Almost surely, 2^165000927091 is an apocalyptic number.

165000927091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

165000927091 is a deficient number, since it is larger than the sum of its proper divisors (67002723725).

165000927091 is a wasteful number, since it uses less digits than its factorization.

165000927091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4833 (or 4826 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 40.

The spelling of 165000927091 in words is "one hundred sixty-five billion, nine hundred twenty-seven thousand, ninety-one".