16990445143 has 8 divisors (see below), whose sum is σ = 19419818912. Its totient is φ = 14561613216.

The previous prime is 16990445089. The next prime is 16990445189. The reversal of 16990445143 is 34154409961.

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 16990445143 - 2¹³ = 16990436951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16990445093 and 16990445102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16990445543) 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, 65880 + ... + 195757.

It is an arithmetic number, because the mean of its divisors is an integer number (2427477364).

Almost surely, 2^16990445143 is an apocalyptic number.

16990445143 is a deficient number, since it is larger than the sum of its proper divisors (2429373769).

16990445143 is an equidigital number, since it uses as much as digits as its factorization.

16990445143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270921.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 16990445143 in words is "sixteen billion, nine hundred ninety million, four hundred forty-five thousand, one hundred forty-three".