16193454172 has 12 divisors (see below), whose sum is σ = 32386908400. Its totient is φ = 6940051776.

The previous prime is 16193454157. The next prime is 16193454191. The reversal of 16193454172 is 27145439161.

It is a happy number.

16193454172 is an admirable number.

It is a congruent number.

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, 289168797 + ... + 289168852.

Almost surely, 2^16193454172 is an apocalyptic number.

It is an amenable number.

16193454172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16193454172 is a wasteful number, since it uses less digits than its factorization.

16193454172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578337660 (or 578337658 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The spelling of 16193454172 in words is "sixteen billion, one hundred ninety-three million, four hundred fifty-four thousand, one hundred seventy-two".