168027207646 has 12 divisors (see below), whose sum is σ = 252275615496. Its totient is φ = 83935408580.

The previous prime is 168027207611. The next prime is 168027207653. The reversal of 168027207646 is 646702720861.

It is a super-2 number, since 2×168027207646² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168027207646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2345271 + ... + 2415853.

It is an arithmetic number, because the mean of its divisors is an integer number (21022967958).

Almost surely, 2^168027207646 is an apocalyptic number.

168027207646 is a deficient number, since it is larger than the sum of its proper divisors (84248407850).

168027207646 is an frugal number, since it uses more digits than its factorization.

168027207646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72767 (or 71676 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 168027207646 in words is "one hundred sixty-eight billion, twenty-seven million, two hundred seven thousand, six hundred forty-six".