667222277799 has 32 divisors (see below), whose sum is σ = 1110516664320. Its totient is φ = 346181493600.

The previous prime is 667222277783. The next prime is 667222277801. The reversal of 667222277799 is 997772222766.

It is a happy number.

It is not a de Polignac number, because 667222277799 - 2⁴ = 667222277783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667222277999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1593429 + ... + 1968110.

It is an arithmetic number, because the mean of its divisors is an integer number (34703645760).

Almost surely, 2^667222277799 is an apocalyptic number.

667222277799 is a deficient number, since it is larger than the sum of its proper divisors (443294386521).

667222277799 is a wasteful number, since it uses less digits than its factorization.

667222277799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562371.

The product of its digits is 112021056, while the sum is 66.

The spelling of 667222277799 in words is "six hundred sixty-seven billion, two hundred twenty-two million, two hundred seventy-seven thousand, seven hundred ninety-nine".