3520260065 has 16 divisors (see below), whose sum is σ = 4899844992. Its totient is φ = 2377862784.

The previous prime is 3520260061. The next prime is 3520260119. The reversal of 3520260065 is 5600620253.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3520260065 - 2² = 3520260061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3520260061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 748244 + ... + 752933.

It is an arithmetic number, because the mean of its divisors is an integer number (306240312).

Almost surely, 2^3520260065 is an apocalyptic number.

3520260065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3520260065 is a deficient number, since it is larger than the sum of its proper divisors (1379584927).

3520260065 is a wasteful number, since it uses less digits than its factorization.

3520260065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501256.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 3520260065 is about 59331.7795536254. The cubic root of 3520260065 is about 1521.2184460650.

The spelling of 3520260065 in words is "three billion, five hundred twenty million, two hundred sixty thousand, sixty-five".