165171056110 has 32 divisors (see below), whose sum is σ = 302839780320. Its totient is φ = 64850447232.

The previous prime is 165171056087. The next prime is 165171056131. The reversal of 165171056110 is 11650171561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591469 + ... + 824728.

It is an arithmetic number, because the mean of its divisors is an integer number (9463743135).

Almost surely, 2^165171056110 is an apocalyptic number.

165171056110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165171056110 is a deficient number, since it is larger than the sum of its proper divisors (137668724210).

165171056110 is a wasteful number, since it uses less digits than its factorization.

165171056110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416420.

The product of its (nonzero) digits is 6300, while the sum is 34.

The spelling of 165171056110 in words is "one hundred sixty-five billion, one hundred seventy-one million, fifty-six thousand, one hundred ten".