3309860661 has 16 divisors (see below), whose sum is σ = 4475903616. Its totient is φ = 2175227136.

The previous prime is 3309860599. The next prime is 3309860681. The reversal of 3309860661 is 1660689033.

3309860661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3309860661 - 2¹¹ = 3309858613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3309860681) 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, 837456 + ... + 841398.

It is an arithmetic number, because the mean of its divisors is an integer number (279743976).

Almost surely, 2^3309860661 is an apocalyptic number.

It is an amenable number.

3309860661 is a deficient number, since it is larger than the sum of its proper divisors (1166042955).

3309860661 is a wasteful number, since it uses less digits than its factorization.

3309860661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 3309860661 is about 57531.3884848958. The cubic root of 3309860661 is about 1490.2869679848.

The spelling of 3309860661 in words is "three billion, three hundred nine million, eight hundred sixty thousand, six hundred sixty-one".