16554475272055 has 16 divisors (see below), whose sum is σ = 23088081738240. Its totient is φ = 11159239504032.

The previous prime is 16554475272053. The next prime is 16554475272077. The reversal of 16554475272055 is 55027257445561.

It is a cyclic number.

It is not a de Polignac number, because 16554475272055 - 2¹ = 16554475272053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16554475272053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4008345459 + ... + 4008349588.

It is an arithmetic number, because the mean of its divisors is an integer number (1443005108640).

Almost surely, 2^{16554475272055} is an apocalyptic number.

16554475272055 is a deficient number, since it is larger than the sum of its proper divisors (6533606466185).

16554475272055 is an equidigital number, since it uses as much as digits as its factorization.

16554475272055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016695118.

The product of its (nonzero) digits is 58800000, while the sum is 58.

The spelling of 16554475272055 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-five million, two hundred seventy-two thousand, fifty-five".