216227494670 has 64 divisors (see below), whose sum is σ = 425632610304. Its totient is φ = 78435813120.

The previous prime is 216227494657. The next prime is 216227494687. The reversal of 216227494670 is 76494722612.

216227494670 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136592699 + ... + 136594281.

It is an arithmetic number, because the mean of its divisors is an integer number (6650509536).

Almost surely, 2^216227494670 is an apocalyptic number.

216227494670 is a deficient number, since it is larger than the sum of its proper divisors (209405115634).

216227494670 is a wasteful number, since it uses less digits than its factorization.

216227494670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 216227494670 in words is "two hundred sixteen billion, two hundred twenty-seven million, four hundred ninety-four thousand, six hundred seventy".