6660220060671 has 8 divisors (see below), whose sum is σ = 8880750696960. Its totient is φ = 4439918065752.

The previous prime is 6660220060667. The next prime is 6660220060723. The reversal of 6660220060671 is 1760600220666.

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

It is not a de Polignac number, because 6660220060671 - 2² = 6660220060667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660220060601) 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, 57092361 + ... + 57208898.

It is an arithmetic number, because the mean of its divisors is an integer number (1110093837120).

Almost surely, 2^{6660220060671} is an apocalyptic number.

6660220060671 is a deficient number, since it is larger than the sum of its proper divisors (2220530636289).

6660220060671 is a wasteful number, since it uses less digits than its factorization.

6660220060671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114320685.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 6660220060671 in words is "six trillion, six hundred sixty billion, two hundred twenty million, sixty thousand, six hundred seventy-one".