165478480 has 40 divisors (see below), whose sum is σ = 391269600. Its totient is φ = 65067648.

The previous prime is 165478477. The next prime is 165478507. The reversal of 165478480 is 84874561.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×165478480² = 54766254686220800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 12810 + ... + 22249.

It is an arithmetic number, because the mean of its divisors is an integer number (9781740).

Almost surely, 2^165478480 is an apocalyptic number.

165478480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165478480 is an abundant number, since it is smaller than the sum of its proper divisors (225791120).

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

165478480 is a wasteful number, since it uses less digits than its factorization.

165478480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35131 (or 35125 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 165478480 is about 12863.8439045256. The cubic root of 165478480 is about 549.0103193913.

The spelling of 165478480 in words is "one hundred sixty-five million, four hundred seventy-eight thousand, four hundred eighty".