161353126166 has 8 divisors (see below), whose sum is σ = 242793190800. Its totient is φ = 80422062568.

The previous prime is 161353126159. The next prime is 161353126183. The reversal of 161353126166 is 661621353161.

161353126166 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×161353126166² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 127249466 + ... + 127250733.

It is an arithmetic number, because the mean of its divisors is an integer number (30349148850).

Almost surely, 2^161353126166 is an apocalyptic number.

161353126166 is a deficient number, since it is larger than the sum of its proper divisors (81440064634).

161353126166 is a wasteful number, since it uses less digits than its factorization.

161353126166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254500518.

The product of its digits is 116640, while the sum is 41.

The spelling of 161353126166 in words is "one hundred sixty-one billion, three hundred fifty-three million, one hundred twenty-six thousand, one hundred sixty-six".