216167604410641 has 8 divisors (see below), whose sum is σ = 234141522609960. Its totient is φ = 198385920630912.

The previous prime is 216167604410633. The next prime is 216167604410663. The reversal of 216167604410641 is 146014406761612.

It can be written as a sum of positive squares in 4 ways, for example, as 92827367012416 + 123340237398225 = 9634696^2 + 11105865^2 .

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 216167604410641 - 2³ = 216167604410633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216167604410041) 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, 48058602556 + ... + 48058607053.

It is an arithmetic number, because the mean of its divisors is an integer number (29267690326245).

Almost surely, 2^{216167604410641} is an apocalyptic number.

It is an amenable number.

216167604410641 is a deficient number, since it is larger than the sum of its proper divisors (17973918199319).

216167604410641 is a wasteful number, since it uses less digits than its factorization.

216167604410641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96117209795.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 216167604410641 in words is "two hundred sixteen trillion, one hundred sixty-seven billion, six hundred four million, four hundred ten thousand, six hundred forty-one".