161310166 has 8 divisors (see below), whose sum is σ = 242023104. Its totient is φ = 80635800.

The previous prime is 161310139. The next prime is 161310173. The reversal of 161310166 is 661013161.

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

It is a self number, because there is not a number n which added to its sum of digits gives 161310166.

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, 5691 + ... + 18841.

It is an arithmetic number, because the mean of its divisors is an integer number (30252888).

Almost surely, 2^161310166 is an apocalyptic number.

161310166 is a deficient number, since it is larger than the sum of its proper divisors (80712938).

161310166 is a wasteful number, since it uses less digits than its factorization.

161310166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19286.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 161310166 is about 12700.7939121930. The cubic root of 161310166 is about 544.3613043701.

The spelling of 161310166 in words is "one hundred sixty-one million, three hundred ten thousand, one hundred sixty-six".