665150673 has 12 divisors (see below), whose sum is σ = 974821904. Its totient is φ = 403121400.

The previous prime is 665150659. The next prime is 665150701. The reversal of 665150673 is 376051566.

665150673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 665150673 - 2⁶ = 665150609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665150173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 915823 + ... + 916548.

Almost surely, 2^665150673 is an apocalyptic number.

It is an amenable number.

665150673 is a deficient number, since it is larger than the sum of its proper divisors (309671231).

665150673 is a wasteful number, since it uses less digits than its factorization.

665150673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832396 (or 1832385 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 665150673 is about 25790.5151751569. The cubic root of 665150673 is about 872.9177909516.

The spelling of 665150673 in words is "six hundred sixty-five million, one hundred fifty thousand, six hundred seventy-three".