481216664 has 16 divisors (see below), whose sum is σ = 910715400. Its totient is φ = 238359232.

The previous prime is 481216663. The next prime is 481216753. The reversal of 481216664 is 466612184.

It is a super-2 number, since 2×481216664² = 463138955422577792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481216663) 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, 280229 + ... + 281940.

Almost surely, 2^481216664 is an apocalyptic number.

It is an amenable number.

481216664 is a deficient number, since it is larger than the sum of its proper divisors (429498736).

481216664 is a wasteful number, since it uses less digits than its factorization.

481216664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562282 (or 562278 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 481216664 is about 21936.6511573668. The cubic root of 481216664 is about 783.6345087657.

The spelling of 481216664 in words is "four hundred eighty-one million, two hundred sixteen thousand, six hundred sixty-four".