16682224072 has 8 divisors (see below), whose sum is σ = 31279170150. Its totient is φ = 8341112032.

The previous prime is 16682224051. The next prime is 16682224087. The reversal of 16682224072 is 27042228661.

It can be written as a sum of positive squares in only one way, i.e., 8720944996 + 7961279076 = 93386^2 + 89226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×16682224072² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042638997 + ... + 1042639012.

Almost surely, 2^16682224072 is an apocalyptic number.

It is an amenable number.

16682224072 is a deficient number, since it is larger than the sum of its proper divisors (14596946078).

16682224072 is a wasteful number, since it uses less digits than its factorization.

16682224072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085278015 (or 2085278011 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 16682224072 in words is "sixteen billion, six hundred eighty-two million, two hundred twenty-four thousand, seventy-two".