1566565002 has 16 divisors (see below), whose sum is σ = 3481255680. Its totient is φ = 522188316.

The previous prime is 1566564959. The next prime is 1566565003. The reversal of 1566565002 is 2005656651.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1566565003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14505178 + ... + 14505285.

It is an arithmetic number, because the mean of its divisors is an integer number (217578480).

Almost surely, 2^1566565002 is an apocalyptic number.

1566565002 is an abundant number, since it is smaller than the sum of its proper divisors (1914690678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1566565002 is a wasteful number, since it uses less digits than its factorization.

1566565002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29010474 (or 29010468 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1566565002 is about 39579.8560128760. The cubic root of 1566565002 is about 1161.4026339554.

The spelling of 1566565002 in words is "one billion, five hundred sixty-six million, five hundred sixty-five thousand, two".