4201665696 has 120 divisors (see below), whose sum is σ = 12783313620. Its totient is φ = 1352236032.

The previous prime is 4201665673. The next prime is 4201665701. The reversal of 4201665696 is 6965661024.

4201665696 is a `hidden beast` number, since 4 + 20 + 1 + 66 + 569 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4194375696 + 7290000 = 64764^2 + 2700^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47220 + ... + 103116.

Almost surely, 2^4201665696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4201665696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6391656810).

4201665696 is an abundant number, since it is smaller than the sum of its proper divisors (8581647924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4201665696 is a wasteful number, since it uses less digits than its factorization.

4201665696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55948 (or 55931 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 4201665696 is about 64820.2568338016. The cubic root of 4201665696 is about 1613.6419100277.

The spelling of 4201665696 in words is "four billion, two hundred one million, six hundred sixty-five thousand, six hundred ninety-six".