481665601 has 4 divisors (see below), whose sum is σ = 482164672. Its totient is φ = 481166532.

The previous prime is 481665571. The next prime is 481665617. The reversal of 481665601 is 106566184.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 481665601 - 2⁷ = 481665473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481665671) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 248085 + ... + 250018.

It is an arithmetic number, because the mean of its divisors is an integer number (120541168).

Almost surely, 2^481665601 is an apocalyptic number.

It is an amenable number.

481665601 is a deficient number, since it is larger than the sum of its proper divisors (499071).

481665601 is an equidigital number, since it uses as much as digits as its factorization.

481665601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499070.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 481665601 is about 21946.8813502055. The cubic root of 481665601 is about 783.8781226491.

The spelling of 481665601 in words is "four hundred eighty-one million, six hundred sixty-five thousand, six hundred one".