675666451 has 8 divisors (see below), whose sum is σ = 679026240. Its totient is φ = 672315648.

The previous prime is 675666413. The next prime is 675666457. The reversal of 675666451 is 154666576.

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

It is a cyclic number.

It is not a de Polignac number, because 675666451 - 2⁷ = 675666323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675666457) 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 7 ways as a sum of consecutive naturals, for example, 184995 + ... + 188611.

It is an arithmetic number, because the mean of its divisors is an integer number (84878280).

Almost surely, 2^675666451 is an apocalyptic number.

675666451 is a deficient number, since it is larger than the sum of its proper divisors (3359789).

675666451 is a wasteful number, since it uses less digits than its factorization.

675666451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493.

The product of its digits is 907200, while the sum is 46.

The square root of 675666451 is about 25993.5848047167. The cubic root of 675666451 is about 877.4939249531.

The spelling of 675666451 in words is "six hundred seventy-five million, six hundred sixty-six thousand, four hundred fifty-one".