667377212716226 has 16 divisors (see below), whose sum is σ = 1003112672465664. Its totient is φ = 333006948709344.

The previous prime is 667377212716199. The next prime is 667377212716297. The reversal of 667377212716226 is 622617212773766.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154573226 + ... + 158832101.

It is an arithmetic number, because the mean of its divisors is an integer number (62694542029104).

Almost surely, 2^{667377212716226} is an apocalyptic number.

667377212716226 is a deficient number, since it is larger than the sum of its proper divisors (335735459749438).

667377212716226 is a wasteful number, since it uses less digits than its factorization.

667377212716226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313407505.

The product of its digits is 149361408, while the sum is 65.

The spelling of 667377212716226 in words is "six hundred sixty-seven trillion, three hundred seventy-seven billion, two hundred twelve million, seven hundred sixteen thousand, two hundred twenty-six".