665093764 has 12 divisors (see below), whose sum is σ = 1167370204. Its totient is φ = 331559424.

The previous prime is 665093761. The next prime is 665093777. The reversal of 665093764 is 467390566.

It can be written as a sum of positive squares in 2 ways, for example, as 290361600 + 374732164 = 17040^2 + 19358^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (665093761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245349 + ... + 248044.

Almost surely, 2^665093764 is an apocalyptic number.

It is an amenable number.

665093764 is a deficient number, since it is larger than the sum of its proper divisors (502276440).

665093764 is a wasteful number, since it uses less digits than its factorization.

665093764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493734 (or 493732 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 665093764 is about 25789.4118583577. The cubic root of 665093764 is about 872.8928951912.

The spelling of 665093764 in words is "six hundred sixty-five million, ninety-three thousand, seven hundred sixty-four".