161168866123 has 8 divisors (see below), whose sum is σ = 164758671360. Its totient is φ = 157607665320.

The previous prime is 161168866109. The next prime is 161168866127. The reversal of 161168866123 is 321668861161.

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

It is a cyclic number.

It is not a de Polignac number, because 161168866123 - 2¹³ = 161168857931 is a prime.

It is a super-2 number, since 2×161168866123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161168866127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7139715 + ... + 7162252.

It is an arithmetic number, because the mean of its divisors is an integer number (20594833920).

Almost surely, 2^161168866123 is an apocalyptic number.

161168866123 is a deficient number, since it is larger than the sum of its proper divisors (3589805237).

161168866123 is a wasteful number, since it uses less digits than its factorization.

161168866123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14302217.

The product of its digits is 497664, while the sum is 49.

The spelling of 161168866123 in words is "one hundred sixty-one billion, one hundred sixty-eight million, eight hundred sixty-six thousand, one hundred twenty-three".