165214480 has 20 divisors (see below), whose sum is σ = 384123852. Its totient is φ = 66085760.

The previous prime is 165214457. The next prime is 165214501. The reversal of 165214480 is 84412561.

It can be written as a sum of positive squares in 2 ways, for example, as 51322896 + 113891584 = 7164^2 + 10672^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032511 + ... + 1032670.

Almost surely, 2^165214480 is an apocalyptic number.

165214480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165214480 is an abundant number, since it is smaller than the sum of its proper divisors (218909372).

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

165214480 is a wasteful number, since it uses less digits than its factorization.

165214480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065194 (or 2065188 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 165214480 is about 12853.5784900548. The cubic root of 165214480 is about 548.7182051341.

The spelling of 165214480 in words is "one hundred sixty-five million, two hundred fourteen thousand, four hundred eighty".