6220144606666 has 16 divisors (see below), whose sum is σ = 9530904902400. Its totient is φ = 3043649069568.

The previous prime is 6220144606661. The next prime is 6220144606681. The reversal of 6220144606666 is 6666064410226.

It is a super-2 number, since 2×6220144606666² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6220144606661) 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, 118164471 + ... + 118217098.

It is an arithmetic number, because the mean of its divisors is an integer number (595681556400).

Almost surely, 2^{6220144606666} is an apocalyptic number.

6220144606666 is a deficient number, since it is larger than the sum of its proper divisors (3310760295734).

6220144606666 is a wasteful number, since it uses less digits than its factorization.

6220144606666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236381853.

The product of its (nonzero) digits is 2985984, while the sum is 49.

The spelling of 6220144606666 in words is "six trillion, two hundred twenty billion, one hundred forty-four million, six hundred six thousand, six hundred sixty-six".