16657550427443 has 8 divisors (see below), whose sum is σ = 17052066447360. Its totient is φ = 16266773896200.

The previous prime is 16657550427433. The next prime is 16657550427491. The reversal of 16657550427443 is 34472405575661.

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 16657550427443 - 2³⁶ = 16588830950707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16657550427433) 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, 934863155 + ... + 934880972.

It is an arithmetic number, because the mean of its divisors is an integer number (2131508305920).

Almost surely, 2^{16657550427443} is an apocalyptic number.

16657550427443 is a deficient number, since it is larger than the sum of its proper divisors (394516019917).

16657550427443 is a wasteful number, since it uses less digits than its factorization.

16657550427443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869744337.

The product of its (nonzero) digits is 84672000, while the sum is 59.

The spelling of 16657550427443 in words is "sixteen trillion, six hundred fifty-seven billion, five hundred fifty million, four hundred twenty-seven thousand, four hundred forty-three".