481757666 has 8 divisors (see below), whose sum is σ = 778223964. Its totient is φ = 222349680.

The previous prime is 481757663. The next prime is 481757719. The reversal of 481757666 is 666757184.

It can be written as a sum of positive squares in 2 ways, for example, as 395174641 + 86583025 = 19879^2 + 9305^2 .

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 (481757663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9264545 + ... + 9264596.

Almost surely, 2^481757666 is an apocalyptic number.

481757666 is a deficient number, since it is larger than the sum of its proper divisors (296466298).

481757666 is a wasteful number, since it uses less digits than its factorization.

481757666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18529156.

The product of its digits is 1693440, while the sum is 50.

The square root of 481757666 is about 21948.9787006138. The cubic root of 481757666 is about 783.9280626501.

The spelling of 481757666 in words is "four hundred eighty-one million, seven hundred fifty-seven thousand, six hundred sixty-six".