216627326805 has 8 divisors (see below), whose sum is σ = 346603722912. Its totient is φ = 115534574288.

The previous prime is 216627326791. The next prime is 216627326831. The reversal of 216627326805 is 508623726612.

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 216627326805 - 2²² = 216623132501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7220910879 + ... + 7220910908.

It is an arithmetic number, because the mean of its divisors is an integer number (43325465364).

Almost surely, 2^216627326805 is an apocalyptic number.

It is an amenable number.

216627326805 is a deficient number, since it is larger than the sum of its proper divisors (129976396107).

216627326805 is a wasteful number, since it uses less digits than its factorization.

216627326805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14441821795.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 216627326805 in words is "two hundred sixteen billion, six hundred twenty-seven million, three hundred twenty-six thousand, eight hundred five".