6550021106671 has 16 divisors (see below), whose sum is σ = 8063179665408. Its totient is φ = 5196971260800.

The previous prime is 6550021106641. The next prime is 6550021106693. The reversal of 6550021106671 is 1766011200556.

It is a cyclic number.

It is not a de Polignac number, because 6550021106671 - 2¹³ = 6550021098479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550021106641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656178250 + ... + 656188231.

It is an arithmetic number, because the mean of its divisors is an integer number (503948729088).

Almost surely, 2^{6550021106671} is an apocalyptic number.

6550021106671 is a deficient number, since it is larger than the sum of its proper divisors (1513158558737).

6550021106671 is a wasteful number, since it uses less digits than its factorization.

6550021106671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312366542.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 6550021106671 in words is "six trillion, five hundred fifty billion, twenty-one million, one hundred six thousand, six hundred seventy-one".