667722250755122 has 16 divisors (see below), whose sum is σ = 1029924709188120. Its totient is φ = 324436321588608.

The previous prime is 667722250755113. The next prime is 667722250755151. The reversal of 667722250755122 is 221557052227766.

It can be written as a sum of positive squares in 4 ways, for example, as 596094617672401 + 71627633082721 = 24415049^2 + 8463311^2 .

It is a super-3 number, since 3×667722250755122³ (a number of 45 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5576747093 + ... + 5576866824.

Almost surely, 2^{667722250755122} is an apocalyptic number.

667722250755122 is a deficient number, since it is larger than the sum of its proper divisors (362202458432998).

667722250755122 is a wasteful number, since it uses less digits than its factorization.

667722250755122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11153614765.

The product of its (nonzero) digits is 49392000, while the sum is 59.

The spelling of 667722250755122 in words is "six hundred sixty-seven trillion, seven hundred twenty-two billion, two hundred fifty million, seven hundred fifty-five thousand, one hundred twenty-two".