1320565606 has 8 divisors (see below), whose sum is σ = 1988380944. Its totient is φ = 657771960.

The previous prime is 1320565601. The next prime is 1320565619. The reversal of 1320565606 is 6065650231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320565601) 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, 1254765 + ... + 1255816.

It is an arithmetic number, because the mean of its divisors is an integer number (248547618).

Almost surely, 2^1320565606 is an apocalyptic number.

1320565606 is a deficient number, since it is larger than the sum of its proper divisors (667815338).

1320565606 is a wasteful number, since it uses less digits than its factorization.

1320565606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510846.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1320565606 is about 36339.5873119110. The cubic root of 1320565606 is about 1097.1179668758.

The spelling of 1320565606 in words is "one billion, three hundred twenty million, five hundred sixty-five thousand, six hundred six".