481639966 has 8 divisors (see below), whose sum is σ = 722774304. Its totient is φ = 240715200.

The previous prime is 481639943. The next prime is 481639979. The reversal of 481639966 is 669936184.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46515 + ... + 55918.

It is an arithmetic number, because the mean of its divisors is an integer number (90346788).

Almost surely, 2^481639966 is an apocalyptic number.

481639966 is a deficient number, since it is larger than the sum of its proper divisors (241134338).

481639966 is a wasteful number, since it uses less digits than its factorization.

481639966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104786.

The product of its digits is 1679616, while the sum is 52.

The square root of 481639966 is about 21946.2973186823. The cubic root of 481639966 is about 783.8642159940.

The spelling of 481639966 in words is "four hundred eighty-one million, six hundred thirty-nine thousand, nine hundred sixty-six".