1002065601 has 16 divisors (see below), whose sum is σ = 1358559488. Its totient is φ = 656845200.

The previous prime is 1002065599. The next prime is 1002065609. The reversal of 1002065601 is 1065602001.

It is a happy number.

It is not a de Polignac number, because 1002065601 - 2¹ = 1002065599 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1002065609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110406 + ... + 119136.

It is an arithmetic number, because the mean of its divisors is an integer number (84909968).

Almost surely, 2^1002065601 is an apocalyptic number.

It is an amenable number.

1002065601 is a deficient number, since it is larger than the sum of its proper divisors (356493887).

1002065601 is an equidigital number, since it uses as much as digits as its factorization.

1002065601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9372.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1002065601 is about 31655.4197729236. The cubic root of 1002065601 is about 1000.6880601313.

Adding to 1002065601 its reverse (1065602001), we get a palindrome (2067667602).

The spelling of 1002065601 in words is "one billion, two million, sixty-five thousand, six hundred one".