3216216461623 has 8 divisors (see below), whose sum is σ = 3508716053520. Its totient is φ = 2923736249280.

The previous prime is 3216216461617. The next prime is 3216216461629. The reversal of 3216216461623 is 3261646126123.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3216216461617) and next prime (3216216461629).

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

It is a de Polignac number, because none of the positive numbers 2^k-3216216461623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3216216461623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216216461629) 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, 4496790 + ... + 5162707.

It is an arithmetic number, because the mean of its divisors is an integer number (438589506690).

Almost surely, 2^{3216216461623} is an apocalyptic number.

3216216461623 is a deficient number, since it is larger than the sum of its proper divisors (292499591897).

3216216461623 is a wasteful number, since it uses less digits than its factorization.

3216216461623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9689777.

The product of its digits is 373248, while the sum is 43.

The spelling of 3216216461623 in words is "three trillion, two hundred sixteen billion, two hundred sixteen million, four hundred sixty-one thousand, six hundred twenty-three".