16657654714849 has 8 divisors (see below), whose sum is σ = 17326257949440. Its totient is φ = 15997255201200.

The previous prime is 16657654714847. The next prime is 16657654714873. The reversal of 16657654714849 is 94841745675661.

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 16657654714849 - 2¹ = 16657654714847 is a prime.

It is a super-3 number, since 3×16657654714849³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16657654714847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2050926094 + ... + 2050934215.

It is an arithmetic number, because the mean of its divisors is an integer number (2165782243680).

Almost surely, 2^{16657654714849} is an apocalyptic number.

It is an amenable number.

16657654714849 is a deficient number, since it is larger than the sum of its proper divisors (668603234591).

16657654714849 is a wasteful number, since it uses less digits than its factorization.

16657654714849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101860471.

The product of its digits is 1219276800, while the sum is 73.

The spelling of 16657654714849 in words is "sixteen trillion, six hundred fifty-seven billion, six hundred fifty-four million, seven hundred fourteen thousand, eight hundred forty-nine".