16554423242455 has 24 divisors (see below), whose sum is σ = 23118091167600. Its totient is φ = 11346953708160.

The previous prime is 16554423242407. The next prime is 16554423242471. The reversal of 16554423242455 is 55424232445561.

It is not a de Polignac number, because 16554423242455 - 2⁹ = 16554423241943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13242405 + ... + 14438494.

It is an arithmetic number, because the mean of its divisors is an integer number (963253798650).

Almost surely, 2^{16554423242455} is an apocalyptic number.

16554423242455 is a deficient number, since it is larger than the sum of its proper divisors (6563667925145).

16554423242455 is a wasteful number, since it uses less digits than its factorization.

16554423242455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27683359 (or 27683352 counting only the distinct ones).

The product of its digits is 23040000, while the sum is 52.

The spelling of 16554423242455 in words is "sixteen trillion, five hundred fifty-four billion, four hundred twenty-three million, two hundred forty-two thousand, four hundred fifty-five".