165671226 has 24 divisors (see below), whose sum is σ = 410233824. Its totient is φ = 47334600.

The previous prime is 165671179. The next prime is 165671257. The reversal of 165671226 is 622176561.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657300 + ... + 657551.

It is an arithmetic number, because the mean of its divisors is an integer number (17093076).

Almost surely, 2^165671226 is an apocalyptic number.

165671226 is an abundant number, since it is smaller than the sum of its proper divisors (244562598).

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

165671226 is a wasteful number, since it uses less digits than its factorization.

165671226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314866 (or 1314863 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 165671226 is about 12871.3334973498. Note that the first 3 decimals coincide. The cubic root of 165671226 is about 549.2233954040.

The spelling of 165671226 in words is "one hundred sixty-five million, six hundred seventy-one thousand, two hundred twenty-six".