16545122612555 has 8 divisors (see below), whose sum is σ = 20390745706512. Its totient is φ = 12878365709088.

The previous prime is 16545122612519. The next prime is 16545122612581. The reversal of 16545122612555 is 55521622154561.

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 16545122612555 - 2²⁰ = 16545121563979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44716547417 + ... + 44716547786.

It is an arithmetic number, because the mean of its divisors is an integer number (2548843213314).

Almost surely, 2^{16545122612555} is an apocalyptic number.

16545122612555 is a deficient number, since it is larger than the sum of its proper divisors (3845623093957).

16545122612555 is an equidigital number, since it uses as much as digits as its factorization.

16545122612555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89433095245.

The product of its digits is 3600000, while the sum is 50.

The spelling of 16545122612555 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-two million, six hundred twelve thousand, five hundred fifty-five".