161214166 has 16 divisors (see below), whose sum is σ = 243891648. Its totient is φ = 79920000.

The previous prime is 161214101. The next prime is 161214169. The reversal of 161214166 is 661412161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161214169) 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, 214291 + ... + 215041.

It is an arithmetic number, because the mean of its divisors is an integer number (15243228).

Almost surely, 2^161214166 is an apocalyptic number.

161214166 is a deficient number, since it is larger than the sum of its proper divisors (82677482).

161214166 is a wasteful number, since it uses less digits than its factorization.

161214166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its digits is 1728, while the sum is 28.

The square root of 161214166 is about 12697.0140584312. The cubic root of 161214166 is about 544.2532949437.

The spelling of 161214166 in words is "one hundred sixty-one million, two hundred fourteen thousand, one hundred sixty-six".