265152665 has 16 divisors (see below), whose sum is σ = 324153360. Its totient is φ = 208158720.

The previous prime is 265152649. The next prime is 265152673. The reversal of 265152665 is 566251562.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 191656336 + 73496329 = 13844^2 + 8573^2 .

It is not a de Polignac number, because 265152665 - 2⁴ = 265152649 is a prime.

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, 187481 + ... + 188889.

It is an arithmetic number, because the mean of its divisors is an integer number (20259585).

Almost surely, 2^265152665 is an apocalyptic number.

It is an amenable number.

265152665 is a deficient number, since it is larger than the sum of its proper divisors (59000695).

265152665 is a wasteful number, since it uses less digits than its factorization.

265152665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092.

The product of its digits is 108000, while the sum is 38.

The square root of 265152665 is about 16283.5089891583. The cubic root of 265152665 is about 642.4391500155.

The spelling of 265152665 in words is "two hundred sixty-five million, one hundred fifty-two thousand, six hundred sixty-five".