16447706672 has 10 divisors (see below), whose sum is σ = 31867431708. Its totient is φ = 8223853328.

The previous prime is 16447706647. The next prime is 16447706689. The reversal of 16447706672 is 27660774461.

It is a self number, because there is not a number n which added to its sum of digits gives 16447706672.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513990818 + ... + 513990849.

Almost surely, 2^16447706672 is an apocalyptic number.

It is an amenable number.

16447706672 is a deficient number, since it is larger than the sum of its proper divisors (15419725036).

16447706672 is a wasteful number, since it uses less digits than its factorization.

16447706672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027981675 (or 1027981669 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 16447706672 in words is "sixteen billion, four hundred forty-seven million, seven hundred six thousand, six hundred seventy-two".