1316222206665 has 16 divisors (see below), whose sum is σ = 2120089464000. Its totient is φ = 697273865792.

The previous prime is 1316222206643. The next prime is 1316222206667. The reversal of 1316222206665 is 5666022226131.

It is a cyclic number.

It is not a de Polignac number, because 1316222206665 - 2²⁷ = 1316087988937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1316222206667) by changing a digit.

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, 294454635 + ... + 294459104.

It is an arithmetic number, because the mean of its divisors is an integer number (132505591500).

Almost surely, 2^{1316222206665} is an apocalyptic number.

1316222206665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316222206665 is a deficient number, since it is larger than the sum of its proper divisors (803867257335).

1316222206665 is a wasteful number, since it uses less digits than its factorization.

1316222206665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588913896.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 1316222206665 in words is "one trillion, three hundred sixteen billion, two hundred twenty-two million, two hundred six thousand, six hundred sixty-five".