16649055071 has 8 divisors (see below), whose sum is σ = 18349850064. Its totient is φ = 14979467520.

The previous prime is 16649055047. The next prime is 16649055079. The reversal of 16649055071 is 17055094661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16649055071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16649055079) 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, 7800740 + ... + 7802873.

It is an arithmetic number, because the mean of its divisors is an integer number (2293731258).

Almost surely, 2^16649055071 is an apocalyptic number.

16649055071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16649055071 is a deficient number, since it is larger than the sum of its proper divisors (1700794993).

16649055071 is a wasteful number, since it uses less digits than its factorization.

16649055071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15603721.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 16649055071 in words is "sixteen billion, six hundred forty-nine million, fifty-five thousand, seventy-one".