165120716 has 12 divisors (see below), whose sum is σ = 304169880. Its totient is φ = 78215040.

The previous prime is 165120691. The next prime is 165120727. The reversal of 165120716 is 617021561.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086245 + ... + 1086396.

It is an arithmetic number, because the mean of its divisors is an integer number (25347490).

Almost surely, 2^165120716 is an apocalyptic number.

It is an amenable number.

165120716 is a deficient number, since it is larger than the sum of its proper divisors (139049164).

165120716 is a wasteful number, since it uses less digits than its factorization.

165120716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172664 (or 2172662 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 165120716 is about 12849.9305834701. The cubic root of 165120716 is about 548.6143810020.

The spelling of 165120716 in words is "one hundred sixty-five million, one hundred twenty thousand, seven hundred sixteen".