265345166 has 4 divisors (see below), whose sum is σ = 398017752. Its totient is φ = 132672582.

The previous prime is 265345147. The next prime is 265345187. The reversal of 265345166 is 661543562.

It is a happy number.

265345166 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 66336290 + ... + 66336293.

It is an arithmetic number, because the mean of its divisors is an integer number (99504438).

Almost surely, 2^265345166 is an apocalyptic number.

265345166 is a deficient number, since it is larger than the sum of its proper divisors (132672586).

265345166 is a wasteful number, since it uses less digits than its factorization.

265345166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132672585.

The product of its digits is 129600, while the sum is 38.

The square root of 265345166 is about 16289.4188355509. The cubic root of 265345166 is about 642.5945828145.

The spelling of 265345166 in words is "two hundred sixty-five million, three hundred forty-five thousand, one hundred sixty-six".