3216661201 has 8 divisors (see below), whose sum is σ = 3464639360. Its totient is φ = 2968760592.

The previous prime is 3216661187. The next prime is 3216661241. The reversal of 3216661201 is 1021666123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3216661201 - 2⁵ = 3216661169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3216661201.

It is not an unprimeable number, because it can be changed into a prime (3216661241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89416 + ... + 120118.

It is an arithmetic number, because the mean of its divisors is an integer number (433079920).

Almost surely, 2^3216661201 is an apocalyptic number.

It is an amenable number.

3216661201 is a deficient number, since it is larger than the sum of its proper divisors (247978159).

3216661201 is a wasteful number, since it uses less digits than its factorization.

3216661201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38775.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3216661201 is about 56715.6169057518. The cubic root of 3216661201 is about 1476.1656897951.

The spelling of 3216661201 in words is "three billion, two hundred sixteen million, six hundred sixty-one thousand, two hundred one".