16945016917 has 8 divisors (see below), whose sum is σ = 18051857856. Its totient is φ = 15850406592.

The previous prime is 16945016911. The next prime is 16945016927. The reversal of 16945016917 is 71961054961.

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 16945016917 - 2³ = 16945016909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16945016911) 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, 3054793 + ... + 3060334.

It is an arithmetic number, because the mean of its divisors is an integer number (2256482232).

Almost surely, 2^16945016917 is an apocalyptic number.

16945016917 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16945016917 is a deficient number, since it is larger than the sum of its proper divisors (1106840939).

16945016917 is a wasteful number, since it uses less digits than its factorization.

16945016917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6115307.

The product of its (nonzero) digits is 408240, while the sum is 49.

The spelling of 16945016917 in words is "sixteen billion, nine hundred forty-five million, sixteen thousand, nine hundred seventeen".