16601649964 has 12 divisors (see below), whose sum is σ = 30316056624. Its totient is φ = 7939919504.

The previous prime is 16601649959. The next prime is 16601649997. The reversal of 16601649964 is 46994610661.

16601649964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16601649964² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 90226267 + ... + 90226450.

It is an arithmetic number, because the mean of its divisors is an integer number (2526338052).

Almost surely, 2^16601649964 is an apocalyptic number.

It is an amenable number.

16601649964 is a deficient number, since it is larger than the sum of its proper divisors (13714406660).

16601649964 is a wasteful number, since it uses less digits than its factorization.

16601649964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180452744 (or 180452742 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 16601649964 in words is "sixteen billion, six hundred one million, six hundred forty-nine thousand, nine hundred sixty-four".