6672056581 has 8 divisors (see below), whose sum is σ = 6683547104. Its totient is φ = 6660578160.

The previous prime is 6672056569. The next prime is 6672056603. The reversal of 6672056581 is 1856502766.

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 6672056581 - 2¹⁷ = 6671925509 is a prime.

It is a super-2 number, since 2×6672056581² = 89032678040130819122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6672056381) 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, 2378926 + ... + 2381728.

It is an arithmetic number, because the mean of its divisors is an integer number (835443388).

Almost surely, 2^6672056581 is an apocalyptic number.

It is an amenable number.

6672056581 is a deficient number, since it is larger than the sum of its proper divisors (11490523).

6672056581 is a wasteful number, since it uses less digits than its factorization.

6672056581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 6672056581 is about 81682.6577738506. The cubic root of 6672056581 is about 1882.5791314904.

The spelling of 6672056581 in words is "six billion, six hundred seventy-two million, fifty-six thousand, five hundred eighty-one".