216896978174 has 8 divisors (see below), whose sum is σ = 325369648488. Its totient is φ = 108440428680.

The previous prime is 216896978173. The next prime is 216896978183. The reversal of 216896978174 is 471879698612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216896978173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3996512 + ... + 4050419.

It is an arithmetic number, because the mean of its divisors is an integer number (40671206061).

Almost surely, 2^216896978174 is an apocalyptic number.

216896978174 is a deficient number, since it is larger than the sum of its proper divisors (108472670314).

216896978174 is a wasteful number, since it uses less digits than its factorization.

216896978174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060410.

The product of its digits is 73156608, while the sum is 68.

The spelling of 216896978174 in words is "two hundred sixteen billion, eight hundred ninety-six million, nine hundred seventy-eight thousand, one hundred seventy-four".