3520645161 has 12 divisors (see below), whose sum is σ = 5159733936. Its totient is φ = 2133724120.

The previous prime is 3520645133. The next prime is 3520645189. The reversal of 3520645161 is 1615460253.

It is an interprime number because it is at equal distance from previous prime (3520645133) and next prime (3520645189).

It is not a de Polignac number, because 3520645161 - 2⁵ = 3520645129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3520645111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4849011 + ... + 4849736.

It is an arithmetic number, because the mean of its divisors is an integer number (429977828).

Almost surely, 2^3520645161 is an apocalyptic number.

It is an amenable number.

3520645161 is a deficient number, since it is larger than the sum of its proper divisors (1639088775).

3520645161 is a wasteful number, since it uses less digits than its factorization.

3520645161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9698772 (or 9698761 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 3520645161 is about 59335.0247408729. The cubic root of 3520645161 is about 1521.2739148625.

The spelling of 3520645161 in words is "three billion, five hundred twenty million, six hundred forty-five thousand, one hundred sixty-one".