165272722 has 16 divisors (see below), whose sum is σ = 254524032. Its totient is φ = 80440480.

The previous prime is 165272717. The next prime is 165272741. The reversal of 165272722 is 227272561.

It is a happy number.

It is a super-3 number, since 3×165272722³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39243 + ... + 43249.

It is an arithmetic number, because the mean of its divisors is an integer number (15907752).

Almost surely, 2^165272722 is an apocalyptic number.

165272722 is a deficient number, since it is larger than the sum of its proper divisors (89251310).

165272722 is a wasteful number, since it uses less digits than its factorization.

165272722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553.

The product of its digits is 23520, while the sum is 34.

The square root of 165272722 is about 12855.8438851753. The cubic root of 165272722 is about 548.7826762609.

The spelling of 165272722 in words is "one hundred sixty-five million, two hundred seventy-two thousand, seven hundred twenty-two".