3545660653 has 4 divisors (see below), whose sum is σ = 3545968860. Its totient is φ = 3545352448.

The previous prime is 3545660639. The next prime is 3545660687. The reversal of 3545660653 is 3560665453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1128758409 + 2416902244 = 33597^2 + 49162^2 .

It is a cyclic number.

It is not a de Polignac number, because 3545660653 - 2⁹ = 3545660141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545660603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136150 + ... + 160087.

It is an arithmetic number, because the mean of its divisors is an integer number (886492215).

Almost surely, 2^3545660653 is an apocalyptic number.

It is an amenable number.

3545660653 is a deficient number, since it is larger than the sum of its proper divisors (308207).

3545660653 is a wasteful number, since it uses less digits than its factorization.

3545660653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308206.

The product of its (nonzero) digits is 972000, while the sum is 43.

The square root of 3545660653 is about 59545.4503131851. The cubic root of 3545660653 is about 1524.8684868045.

The spelling of 3545660653 in words is "three billion, five hundred forty-five million, six hundred sixty thousand, six hundred fifty-three".