16437647212 has 18 divisors (see below), whose sum is σ = 33462353652. Its totient is φ = 7044705864.

The previous prime is 16437647207. The next prime is 16437647231. The reversal of 16437647212 is 21274673461.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41932578 + ... + 41932969.

Almost surely, 2^16437647212 is an apocalyptic number.

It is an amenable number.

16437647212 is an abundant number, since it is smaller than the sum of its proper divisors (17024706440).

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

16437647212 is a wasteful number, since it uses less digits than its factorization.

16437647212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83865565 (or 83865556 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The spelling of 16437647212 in words is "sixteen billion, four hundred thirty-seven million, six hundred forty-seven thousand, two hundred twelve".