161926266 has 8 divisors (see below), whose sum is σ = 323852544. Its totient is φ = 53975420.

The previous prime is 161926249. The next prime is 161926273. The reversal of 161926266 is 662629161.

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

161926266 is an admirable 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, 13493850 + ... + 13493861.

It is an arithmetic number, because the mean of its divisors is an integer number (40481568).

Almost surely, 2^161926266 is an apocalyptic number.

161926266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161926266 is a wasteful number, since it uses less digits than its factorization.

161926266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26987716.

The product of its digits is 46656, while the sum is 39.

The square root of 161926266 is about 12725.0251866155. The cubic root of 161926266 is about 545.0534593914.

The spelling of 161926266 in words is "one hundred sixty-one million, nine hundred twenty-six thousand, two hundred sixty-six".