16856450194 has 8 divisors (see below), whose sum is σ = 25353571968. Its totient is φ = 8405259540.

The previous prime is 16856450141. The next prime is 16856450209. The reversal of 16856450194 is 49105465861.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11481862 + ... + 11483329.

It is an arithmetic number, because the mean of its divisors is an integer number (3169196496).

Almost surely, 2^16856450194 is an apocalyptic number.

16856450194 is a deficient number, since it is larger than the sum of its proper divisors (8497121774).

16856450194 is a wasteful number, since it uses less digits than its factorization.

16856450194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22965560.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 16856450194 in words is "sixteen billion, eight hundred fifty-six million, four hundred fifty thousand, one hundred ninety-four".