478151665 has 8 divisors (see below), whose sum is σ = 576311040. Its totient is φ = 380835312.

The previous prime is 478151599. The next prime is 478151693. The reversal of 478151665 is 566151874.

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

It is a cyclic number.

It is not a de Polignac number, because 478151665 - 2¹⁷ = 478020593 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 209505 + ... + 211774.

It is an arithmetic number, because the mean of its divisors is an integer number (72038880).

Almost surely, 2^478151665 is an apocalyptic number.

It is an amenable number.

478151665 is a deficient number, since it is larger than the sum of its proper divisors (98159375).

478151665 is a wasteful number, since it uses less digits than its factorization.

478151665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421511.

The product of its digits is 201600, while the sum is 43.

The square root of 478151665 is about 21866.6793318053. The cubic root of 478151665 is about 781.9672373076.

The spelling of 478151665 in words is "four hundred seventy-eight million, one hundred fifty-one thousand, six hundred sixty-five".