168158160646 has 16 divisors (see below), whose sum is σ = 288356274720. Its totient is φ = 72046497600.

The previous prime is 168158160637. The next prime is 168158160647. The reversal of 168158160646 is 646061851861.

168158160646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 168158160593 and 168158160602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168158160647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724655 + ... + 1819546.

It is an arithmetic number, because the mean of its divisors is an integer number (18022267170).

Almost surely, 2^168158160646 is an apocalyptic number.

168158160646 is a deficient number, since it is larger than the sum of its proper divisors (120198114074).

168158160646 is a wasteful number, since it uses less digits than its factorization.

168158160646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547599.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 168158160646 in words is "one hundred sixty-eight billion, one hundred fifty-eight million, one hundred sixty thousand, six hundred forty-six".