1565045516 has 6 divisors (see below), whose sum is σ = 2738829660. Its totient is φ = 782522756.

The previous prime is 1565045507. The next prime is 1565045519. The reversal of 1565045516 is 6155405651.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1565045516.

It is not an unprimeable number, because it can be changed into a prime (1565045519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195630686 + ... + 195630693.

It is an arithmetic number, because the mean of its divisors is an integer number (456471610).

Almost surely, 2^1565045516 is an apocalyptic number.

It is an amenable number.

1565045516 is a deficient number, since it is larger than the sum of its proper divisors (1173784144).

1565045516 is a wasteful number, since it uses less digits than its factorization.

1565045516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391261383 (or 391261381 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 1565045516 is about 39560.6561624046. The cubic root of 1565045516 is about 1161.0270125768.

The spelling of 1565045516 in words is "one billion, five hundred sixty-five million, forty-five thousand, five hundred sixteen".