161295806 has 16 divisors (see below), whose sum is σ = 276950016. Its totient is φ = 69016056.

The previous prime is 161295791. The next prime is 161295817. The reversal of 161295806 is 608592161.

It is a self number, because there is not a number n which added to its sum of digits gives 161295806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (17309376).

Almost surely, 2^161295806 is an apocalyptic number.

161295806 is a deficient number, since it is larger than the sum of its proper divisors (115654210).

161295806 is a wasteful number, since it uses less digits than its factorization.

161295806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18463.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 161295806 is about 12700.2285806201. The cubic root of 161295806 is about 544.3451506861.

The spelling of 161295806 in words is "one hundred sixty-one million, two hundred ninety-five thousand, eight hundred six".