165475480 has 16 divisors (see below), whose sum is σ = 372319920. Its totient is φ = 66190176.

The previous prime is 165475463. The next prime is 165475517. The reversal of 165475480 is 84574561.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 4136887 = 165475480 / (1 + 6 + 5 + 4 + 7 + 5 + 4 + 8 + 0).

It is a congruent number.

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, 2068404 + ... + 2068483.

It is an arithmetic number, because the mean of its divisors is an integer number (23269995).

Almost surely, 2^165475480 is an apocalyptic number.

165475480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165475480 is an abundant number, since it is smaller than the sum of its proper divisors (206844440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165475480 is a wasteful number, since it uses less digits than its factorization.

165475480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136898 (or 4136894 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 165475480 is about 12863.7272981045. The cubic root of 165475480 is about 549.0070016570.

The spelling of 165475480 in words is "one hundred sixty-five million, four hundred seventy-five thousand, four hundred eighty".