161073966 has 16 divisors (see below), whose sum is σ = 323049600. Its totient is φ = 53541048.

The previous prime is 161073959. The next prime is 161073967. The reversal of 161073966 is 669370161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161073967) 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, 35236 + ... + 39543.

It is an arithmetic number, because the mean of its divisors is an integer number (20190600).

Almost surely, 2^161073966 is an apocalyptic number.

161073966 is an abundant number, since it is smaller than the sum of its proper divisors (161975634).

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

161073966 is a wasteful number, since it uses less digits than its factorization.

161073966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75143.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 161073966 is about 12691.4918744803. The cubic root of 161073966 is about 544.0954791142.

The spelling of 161073966 in words is "one hundred sixty-one million, seventy-three thousand, nine hundred sixty-six".