265001166 has 32 divisors (see below), whose sum is σ = 600009120. Its totient is φ = 86666112.

The previous prime is 265001123. The next prime is 265001171. The reversal of 265001166 is 661100562.

It is a happy number.

265001166 is a `hidden beast` number, since 2 + 650 + 0 + 1 + 1 + 6 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43435 + ... + 49158.

It is an arithmetic number, because the mean of its divisors is an integer number (18750285).

Almost surely, 2^265001166 is an apocalyptic number.

265001166 is an abundant number, since it is smaller than the sum of its proper divisors (335007954).

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

265001166 is a wasteful number, since it uses less digits than its factorization.

265001166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92657 (or 92651 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 265001166 is about 16278.8564094656. The cubic root of 265001166 is about 642.3167709181.

The spelling of 265001166 in words is "two hundred sixty-five million, one thousand, one hundred sixty-six".