16985145873 has 8 divisors (see below), whose sum is σ = 22647575808. Its totient is φ = 11323073264.

The previous prime is 16985145847. The next prime is 16985145883. The reversal of 16985145873 is 37854158961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16985145873 - 2¹² = 16985141777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16985145883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54811 + ... + 192287.

It is an arithmetic number, because the mean of its divisors is an integer number (2830946976).

Almost surely, 2^16985145873 is an apocalyptic number.

It is an amenable number.

16985145873 is a deficient number, since it is larger than the sum of its proper divisors (5662429935).

16985145873 is a wasteful number, since it uses less digits than its factorization.

16985145873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178663.

The product of its digits is 7257600, while the sum is 57.

The spelling of 16985145873 in words is "sixteen billion, nine hundred eighty-five million, one hundred forty-five thousand, eight hundred seventy-three".