4165535601 has 12 divisors (see below), whose sum is σ = 6032045812. Its totient is φ = 2770026336.

The previous prime is 4165535593. The next prime is 4165535639. The reversal of 4165535601 is 1065355614.

4165535601 is a `hidden beast` number, since 4 + 1 + 65 + 535 + 60 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2613254400 + 1552281201 = 51120^2 + 39399^2 .

It is not a de Polignac number, because 4165535601 - 2³ = 4165535593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4165535651) 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, 579346 + ... + 586491.

Almost surely, 2^4165535601 is an apocalyptic number.

It is an amenable number.

4165535601 is a deficient number, since it is larger than the sum of its proper divisors (1866510211).

4165535601 is a wasteful number, since it uses less digits than its factorization.

4165535601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166240 (or 1166237 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 4165535601 is about 64540.9606451593. The cubic root of 4165535601 is about 1609.0033569131.

The spelling of 4165535601 in words is "four billion, one hundred sixty-five million, five hundred thirty-five thousand, six hundred one".