166159613760 has 224 divisors, whose sum is σ = 613142507520. Its totient is φ = 37335533568.

The previous prime is 166159613747. The next prime is 166159613761. The reversal of 166159613760 is 67316951661.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166159613761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186937 + ... + 606023.

Almost surely, 2^166159613760 is an apocalyptic number.

166159613760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166159613760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306571253760).

166159613760 is an abundant number, since it is smaller than the sum of its proper divisors (446982893760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166159613760 is a wasteful number, since it uses less digits than its factorization.

166159613760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419173 (or 419163 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 166159613760 in words is "one hundred sixty-six billion, one hundred fifty-nine million, six hundred thirteen thousand, seven hundred sixty".