3216160646 has 4 divisors (see below), whose sum is σ = 4824240972. Its totient is φ = 1608080322.

The previous prime is 3216160643. The next prime is 3216160711. The reversal of 3216160646 is 6460616123.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216160643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804040160 + ... + 804040163.

It is an arithmetic number, because the mean of its divisors is an integer number (1206060243).

Almost surely, 2^3216160646 is an apocalyptic number.

3216160646 is a deficient number, since it is larger than the sum of its proper divisors (1608080326).

3216160646 is a wasteful number, since it uses less digits than its factorization.

3216160646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608080325.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 3216160646 is about 56711.2038842414. The cubic root of 3216160646 is about 1476.0891155253.

Adding to 3216160646 its reverse (6460616123), we get a palindrome (9676776769).

The spelling of 3216160646 in words is "three billion, two hundred sixteen million, one hundred sixty thousand, six hundred forty-six".