168409220123626 has 8 divisors (see below), whose sum is σ = 255114957217284. Its totient is φ = 83370901051200.

The previous prime is 168409220123513. The next prime is 168409220123659. The reversal of 168409220123626 is 626321022904861.

It can be written as a sum of positive squares in 2 ways, for example, as 161140809515625 + 7268410608001 = 12694125^2 + 2695999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416854505055 + ... + 416854505458.

Almost surely, 2^{168409220123626} is an apocalyptic number.

168409220123626 is a deficient number, since it is larger than the sum of its proper divisors (86705737093658).

168409220123626 is a wasteful number, since it uses less digits than its factorization.

168409220123626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833709010616.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 168409220123626 in words is "one hundred sixty-eight trillion, four hundred nine billion, two hundred twenty million, one hundred twenty-three thousand, six hundred twenty-six".