16671016947 has 16 divisors (see below), whose sum is σ = 23949191840. Its totient is φ = 10254235392.

The previous prime is 16671016891. The next prime is 16671016961. The reversal of 16671016947 is 74961017661.

It is not a de Polignac number, because 16671016947 - 2⁷ = 16671016819 is a prime.

It is a super-2 number, since 2×16671016947² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16671016896 and 16671016905.

It is not an unprimeable number, because it can be changed into a prime (16671016987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16672 + ... + 183357.

It is an arithmetic number, because the mean of its divisors is an integer number (1496824490).

Almost surely, 2^16671016947 is an apocalyptic number.

16671016947 is a deficient number, since it is larger than the sum of its proper divisors (7278174893).

16671016947 is a wasteful number, since it uses less digits than its factorization.

16671016947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202182.

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 16671016947 in words is "sixteen billion, six hundred seventy-one million, sixteen thousand, nine hundred forty-seven".