165471480 has 96 divisors (see below), whose sum is σ = 539557200. Its totient is φ = 43980288.

The previous prime is 165471479. The next prime is 165471487. The reversal of 165471480 is 84174561.

165471480 = T₁₆₁ + T₁₆₂ + ... + T₉₉₈.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165471487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150292 + ... + 151388.

Almost surely, 2^165471480 is an apocalyptic number.

165471480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165471480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269778600).

165471480 is an abundant number, since it is smaller than the sum of its proper divisors (374085720).

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

165471480 is a wasteful number, since it uses less digits than its factorization.

165471480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 165471480 is about 12863.5718212322. The cubic root of 165471480 is about 549.0025779488.

The spelling of 165471480 in words is "one hundred sixty-five million, four hundred seventy-one thousand, four hundred eighty".