165505474 has 16 divisors (see below), whose sum is σ = 254016000. Its totient is φ = 80855424.

The previous prime is 165505469. The next prime is 165505507. The reversal of 165505474 is 474505561.

It is a happy number.

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, 9927 + ... + 20725.

It is an arithmetic number, because the mean of its divisors is an integer number (15876000).

Almost surely, 2^165505474 is an apocalyptic number.

165505474 is a deficient number, since it is larger than the sum of its proper divisors (88510526).

165505474 is a wasteful number, since it uses less digits than its factorization.

165505474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10977.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 165505474 is about 12864.8930815612. The cubic root of 165505474 is about 549.0401705615.

The spelling of 165505474 in words is "one hundred sixty-five million, five hundred five thousand, four hundred seventy-four".