216244421601 has 8 divisors (see below), whose sum is σ = 310504810560. Its totient is φ = 133073490192.

The previous prime is 216244421563. The next prime is 216244421611. The reversal of 216244421601 is 106124442612.

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

It is not a de Polignac number, because 216244421601 - 2⁷ = 216244421473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216244421611) 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, 2772364341 + ... + 2772364418.

It is an arithmetic number, because the mean of its divisors is an integer number (38813101320).

Almost surely, 2^216244421601 is an apocalyptic number.

It is an amenable number.

216244421601 is a deficient number, since it is larger than the sum of its proper divisors (94260388959).

216244421601 is a wasteful number, since it uses less digits than its factorization.

216244421601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5544728775.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 216244421601 in words is "two hundred sixteen billion, two hundred forty-four million, four hundred twenty-one thousand, six hundred one".