1665528316 has 12 divisors (see below), whose sum is σ = 2916880288. Its totient is φ = 832133952.

The previous prime is 1665528251. The next prime is 1665528329. The reversal of 1665528316 is 6138255661.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151581 + ... + 162196.

Almost surely, 2^1665528316 is an apocalyptic number.

It is an amenable number.

1665528316 is a deficient number, since it is larger than the sum of its proper divisors (1251351972).

1665528316 is a wasteful number, since it uses less digits than its factorization.

1665528316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315108 (or 315106 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The square root of 1665528316 is about 40810.8847735503. The cubic root of 1665528316 is about 1185.3611072268.

The spelling of 1665528316 in words is "one billion, six hundred sixty-five million, five hundred twenty-eight thousand, three hundred sixteen".