16812223172 has 24 divisors (see below), whose sum is σ = 30106581120. Its totient is φ = 8211047840.

The previous prime is 16812223159. The next prime is 16812223177. The reversal of 16812223172 is 27132221861.

It is not an unprimeable number, because it can be changed into a prime (16812223177) 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, 7847 + ... + 183537.

It is an arithmetic number, because the mean of its divisors is an integer number (1254440880).

Almost surely, 2^16812223172 is an apocalyptic number.

It is an amenable number.

16812223172 is a deficient number, since it is larger than the sum of its proper divisors (13294357948).

16812223172 is a wasteful number, since it uses less digits than its factorization.

16812223172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176251 (or 176249 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The spelling of 16812223172 in words is "sixteen billion, eight hundred twelve million, two hundred twenty-three thousand, one hundred seventy-two".