6670056421 has 8 divisors (see below), whose sum is σ = 7623463680. Its totient is φ = 5716784688.

The previous prime is 6670056401. The next prime is 6670056431. The reversal of 6670056421 is 1246500766.

It is a happy number.

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 6670056421 - 2⁵ = 6670056389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670056401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115515 + ... + 163351.

It is an arithmetic number, because the mean of its divisors is an integer number (952932960).

Almost surely, 2^6670056421 is an apocalyptic number.

It is an amenable number.

6670056421 is a deficient number, since it is larger than the sum of its proper divisors (953407259).

6670056421 is a wasteful number, since it uses less digits than its factorization.

6670056421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67763.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 6670056421 is about 81670.4133759589. The cubic root of 6670056421 is about 1882.3909918084.

The spelling of 6670056421 in words is "six billion, six hundred seventy million, fifty-six thousand, four hundred twenty-one".