16555266432745 has 8 divisors (see below), whose sum is σ = 20289007373184. Its totient is φ = 12962421376944.

The previous prime is 16555266432743. The next prime is 16555266432821. The reversal of 16555266432745 is 54723466255561.

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 16555266432745 - 2¹ = 16555266432743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16555266432743) 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, 35223970899 + ... + 35223971368.

It is an arithmetic number, because the mean of its divisors is an integer number (2536125921648).

Almost surely, 2^{16555266432745} is an apocalyptic number.

It is an amenable number.

16555266432745 is a deficient number, since it is larger than the sum of its proper divisors (3733740940439).

16555266432745 is an equidigital number, since it uses as much as digits as its factorization.

16555266432745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70447942319.

The product of its digits is 181440000, while the sum is 61.

The spelling of 16555266432745 in words is "sixteen trillion, five hundred fifty-five billion, two hundred sixty-six million, four hundred thirty-two thousand, seven hundred forty-five".