481091665 has 16 divisors (see below), whose sum is σ = 585945360. Its totient is φ = 379157760.

The previous prime is 481091659. The next prime is 481091683. The reversal of 481091665 is 566190184.

It can be written as a sum of positive squares in 8 ways, for example, as 82011136 + 399080529 = 9056^2 + 19977^2 .

It is not a de Polignac number, because 481091665 - 2³ = 481091657 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 96207 + ... + 101083.

It is an arithmetic number, because the mean of its divisors is an integer number (36621585).

Almost surely, 2^481091665 is an apocalyptic number.

It is an amenable number.

481091665 is a deficient number, since it is larger than the sum of its proper divisors (104853695).

481091665 is a wasteful number, since it uses less digits than its factorization.

481091665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5172.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 481091665 is about 21933.8018820267. The cubic root of 481091665 is about 783.5666515890.

The spelling of 481091665 in words is "four hundred eighty-one million, ninety-one thousand, six hundred sixty-five".