481666451 has 8 divisors (see below), whose sum is σ = 550664544. Its totient is φ = 412715520.

The previous prime is 481666447. The next prime is 481666459. The reversal of 481666451 is 154666184.

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

It is not a de Polignac number, because 481666451 - 2² = 481666447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 481666399 and 481666408.

It is not an unprimeable number, because it can be changed into a prime (481666459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13811 + ... + 33971.

It is an arithmetic number, because the mean of its divisors is an integer number (68833068).

Almost surely, 2^481666451 is an apocalyptic number.

481666451 is a deficient number, since it is larger than the sum of its proper divisors (68998093).

481666451 is a wasteful number, since it uses less digits than its factorization.

481666451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23581.

The product of its digits is 138240, while the sum is 41.

The square root of 481666451 is about 21946.9007151352. The cubic root of 481666451 is about 783.8785837546.

The spelling of 481666451 in words is "four hundred eighty-one million, six hundred sixty-six thousand, four hundred fifty-one".