6365746227666 has 32 divisors (see below), whose sum is σ = 14550880740480. Its totient is φ = 1818709180416.

The previous prime is 6365746227629. The next prime is 6365746227677. The reversal of 6365746227666 is 6667226475636.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6365746227597 and 6365746227606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2115631 + ... + 4148178.

It is an arithmetic number, because the mean of its divisors is an integer number (454715023140).

Almost surely, 2^{6365746227666} is an apocalyptic number.

6365746227666 is an abundant number, since it is smaller than the sum of its proper divisors (8185134512814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6365746227666 is a wasteful number, since it uses less digits than its factorization.

6365746227666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288018.

The product of its digits is 548674560, while the sum is 66.

The spelling of 6365746227666 in words is "six trillion, three hundred sixty-five billion, seven hundred forty-six million, two hundred twenty-seven thousand, six hundred sixty-six".