161796326 has 8 divisors (see below), whose sum is σ = 243160104. Its totient is φ = 80742960.

The previous prime is 161796319. The next prime is 161796337. The reversal of 161796326 is 623697161.

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

It is a super-2 number, since 2×161796326² = 52356102214196552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76295 + ... + 78386.

It is an arithmetic number, because the mean of its divisors is an integer number (30395013).

Almost surely, 2^161796326 is an apocalyptic number.

161796326 is a deficient number, since it is larger than the sum of its proper divisors (81363778).

161796326 is a wasteful number, since it uses less digits than its factorization.

161796326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155206.

The product of its digits is 81648, while the sum is 41.

The square root of 161796326 is about 12719.9184745815. The cubic root of 161796326 is about 544.9076251148.

The spelling of 161796326 in words is "one hundred sixty-one million, seven hundred ninety-six thousand, three hundred twenty-six".