3620521065 has 64 divisors (see below), whose sum is σ = 6773760000. Its totient is φ = 1650624192.

The previous prime is 3620521063. The next prime is 3620521081. The reversal of 3620521065 is 5601250263.

3620521065 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3620521065 - 2¹ = 3620521063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3620521063) 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 63 ways as a sum of consecutive naturals, for example, 2587236 + ... + 2588634.

It is an arithmetic number, because the mean of its divisors is an integer number (105840000).

Almost surely, 2^3620521065 is an apocalyptic number.

3620521065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3620521065 is a deficient number, since it is larger than the sum of its proper divisors (3153238935).

3620521065 is a wasteful number, since it uses less digits than its factorization.

3620521065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3620521065 is about 60170.7658668227. The cubic root of 3620521065 is about 1535.5254758918.

The spelling of 3620521065 in words is "three billion, six hundred twenty million, five hundred twenty-one thousand, sixty-five".