16554433275563 has 4 divisors (see below), whose sum is σ = 16618847413080. Its totient is φ = 16490019138048.

The previous prime is 16554433275557. The next prime is 16554433275607. The reversal of 16554433275563 is 36557233445561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16554433275563 - 2¹⁰ = 16554433274539 is a prime.

It is a super-2 number, since 2×16554433275563² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16554433272563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32207068373 + ... + 32207068886.

It is an arithmetic number, because the mean of its divisors is an integer number (4154711853270).

Almost surely, 2^{16554433275563} is an apocalyptic number.

16554433275563 is a deficient number, since it is larger than the sum of its proper divisors (64414137517).

16554433275563 is an equidigital number, since it uses as much as digits as its factorization.

16554433275563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64414137516.

The product of its digits is 136080000, while the sum is 59.

The spelling of 16554433275563 in words is "sixteen trillion, five hundred fifty-four billion, four hundred thirty-three million, two hundred seventy-five thousand, five hundred sixty-three".