536671665 has 12 divisors (see below), whose sum is σ = 930230964. Its totient is φ = 286224864.

The previous prime is 536671631. The next prime is 536671753. The reversal of 536671665 is 566176635.

It can be written as a sum of positive squares in 2 ways, for example, as 334121841 + 202549824 = 18279^2 + 14232^2 .

It is not a de Polignac number, because 536671665 - 2⁶ = 536671601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 11926037 = 536671665 / (5 + 3 + 6 + 6 + 7 + 1 + 6 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 536671665.

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, 5962974 + ... + 5963063.

It is an arithmetic number, because the mean of its divisors is an integer number (77519247).

Almost surely, 2^536671665 is an apocalyptic number.

It is an amenable number.

536671665 is a deficient number, since it is larger than the sum of its proper divisors (393559299).

536671665 is a wasteful number, since it uses less digits than its factorization.

536671665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11926048 (or 11926045 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 536671665 is about 23166.1750187639. The cubic root of 536671665 is about 812.6487819058.

The spelling of 536671665 in words is "five hundred thirty-six million, six hundred seventy-one thousand, six hundred sixty-five".