16985672445 has 16 divisors (see below), whose sum is σ = 31059515520. Its totient is φ = 7764878784.

The previous prime is 16985672443. The next prime is 16985672449. The reversal of 16985672445 is 54427658961.

It is not a de Polignac number, because 16985672445 - 2¹ = 16985672443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16985672441) 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, 80884050 + ... + 80884259.

It is an arithmetic number, because the mean of its divisors is an integer number (1941219720).

Almost surely, 2^16985672445 is an apocalyptic number.

16985672445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16985672445 is a deficient number, since it is larger than the sum of its proper divisors (14073843075).

16985672445 is a wasteful number, since it uses less digits than its factorization.

16985672445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161768324.

The product of its digits is 14515200, while the sum is 57.

The spelling of 16985672445 in words is "sixteen billion, nine hundred eighty-five million, six hundred seventy-two thousand, four hundred forty-five".