6671556101 has 8 divisors (see below), whose sum is σ = 7768497024. Its totient is φ = 5610580560.

The previous prime is 6671556043. The next prime is 6671556119. The reversal of 6671556101 is 1016551766.

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 6671556101 - 2²⁶ = 6604447237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6671556161) 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, 8990945 + ... + 8991686.

It is an arithmetic number, because the mean of its divisors is an integer number (971062128).

Almost surely, 2^6671556101 is an apocalyptic number.

It is an amenable number.

6671556101 is a deficient number, since it is larger than the sum of its proper divisors (1096940923).

6671556101 is a wasteful number, since it uses less digits than its factorization.

6671556101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17982691.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 6671556101 is about 81679.5941530074. The cubic root of 6671556101 is about 1882.5320587100.

The spelling of 6671556101 in words is "six billion, six hundred seventy-one million, five hundred fifty-six thousand, one hundred one".