165478474 has 8 divisors (see below), whose sum is σ = 283677408. Its totient is φ = 70919340.

The previous prime is 165478451. The next prime is 165478477. The reversal of 165478474 is 474874561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (165478477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5909932 + ... + 5909959.

It is an arithmetic number, because the mean of its divisors is an integer number (35459676).

Almost surely, 2^165478474 is an apocalyptic number.

165478474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165478474 is a deficient number, since it is larger than the sum of its proper divisors (118198934).

165478474 is a wasteful number, since it uses less digits than its factorization.

165478474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11819900.

The product of its digits is 752640, while the sum is 46.

The square root of 165478474 is about 12863.8436713138. The cubic root of 165478474 is about 549.0103127559.

The spelling of 165478474 in words is "one hundred sixty-five million, four hundred seventy-eight thousand, four hundred seventy-four".