16554443676745 has 32 divisors (see below), whose sum is σ = 22670923554720. Its totient is φ = 11515389634560.

The previous prime is 16554443676739. The next prime is 16554443676751. The reversal of 16554443676745 is 54767634445561.

It is an interprime number because it is at equal distance from previous prime (16554443676739) and next prime (16554443676751).

It can be written as a sum of positive squares in 16 ways, for example, as 5383253793856 + 11171189882889 = 2320184^2 + 3342333^2 .

It is not a de Polignac number, because 16554443676745 - 2³⁵ = 16520083938377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107022694 + ... + 107177263.

It is an arithmetic number, because the mean of its divisors is an integer number (708466361085).

Almost surely, 2^{16554443676745} is an apocalyptic number.

It is an amenable number.

16554443676745 is a deficient number, since it is larger than the sum of its proper divisors (6116479877975).

16554443676745 is a wasteful number, since it uses less digits than its factorization.

16554443676745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214200045.

The product of its digits is 1016064000, while the sum is 67.

The spelling of 16554443676745 in words is "sixteen trillion, five hundred fifty-four billion, four hundred forty-three million, six hundred seventy-six thousand, seven hundred forty-five".