165266126 has 4 divisors (see below), whose sum is σ = 247899192. Its totient is φ = 82633062.

The previous prime is 165266119. The next prime is 165266149. The reversal of 165266126 is 621662561.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41316530 + ... + 41316533.

It is an arithmetic number, because the mean of its divisors is an integer number (61974798).

Almost surely, 2^165266126 is an apocalyptic number.

165266126 is a deficient number, since it is larger than the sum of its proper divisors (82633066).

165266126 is an equidigital number, since it uses as much as digits as its factorization.

165266126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82633065.

The product of its digits is 25920, while the sum is 35.

The square root of 165266126 is about 12855.5873455864. The cubic root of 165266126 is about 548.7753755629.

The spelling of 165266126 in words is "one hundred sixty-five million, two hundred sixty-six thousand, one hundred twenty-six".