16554471075623 has 8 divisors (see below), whose sum is σ = 18309726845088. Its totient is φ = 14868048865824.

The previous prime is 16554471075617. The next prime is 16554471075643. The reversal of 16554471075623 is 32657017445561.

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 16554471075623 - 2³⁴ = 16537291206439 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 (16554471075613) 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, 17208389411 + ... + 17208390372.

It is an arithmetic number, because the mean of its divisors is an integer number (2288715855636).

Almost surely, 2^{16554471075623} is an apocalyptic number.

16554471075623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16554471075623 is a deficient number, since it is larger than the sum of its proper divisors (1755255769465).

16554471075623 is a wasteful number, since it uses less digits than its factorization.

16554471075623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34416779833.

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 16554471075623 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-one million, seventy-five thousand, six hundred twenty-three".