16428558117 has 8 divisors (see below), whose sum is σ = 21937885600. Its totient is φ = 10935801360.

The previous prime is 16428558103. The next prime is 16428558121. The reversal of 16428558117 is 71185582461.

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

It is not a de Polignac number, because 16428558117 - 2²³ = 16420169509 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 (16428558127) 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, 4140367 + ... + 4144332.

It is an arithmetic number, because the mean of its divisors is an integer number (2742235700).

Almost surely, 2^16428558117 is an apocalyptic number.

It is an amenable number.

16428558117 is a deficient number, since it is larger than the sum of its proper divisors (5509327483).

16428558117 is an equidigital number, since it uses as much as digits as its factorization.

16428558117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8285363.

The product of its digits is 537600, while the sum is 48.

The spelling of 16428558117 in words is "sixteen billion, four hundred twenty-eight million, five hundred fifty-eight thousand, one hundred seventeen".