16556070226603 has 4 divisors (see below), whose sum is σ = 16639266559600. Its totient is φ = 16472873893608.

The previous prime is 16556070226583. The next prime is 16556070226627. The reversal of 16556070226603 is 30662207065561.

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 16556070226603 - 2¹⁷ = 16556070095531 is a prime.

It is a super-2 number, since 2×16556070226603² (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 (16556070226403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41598166200 + ... + 41598166597.

It is an arithmetic number, because the mean of its divisors is an integer number (4159816639900).

Almost surely, 2^{16556070226603} is an apocalyptic number.

16556070226603 is a deficient number, since it is larger than the sum of its proper divisors (83196332997).

16556070226603 is an equidigital number, since it uses as much as digits as its factorization.

16556070226603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83196332996.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 16556070226603 in words is "sixteen trillion, five hundred fifty-six billion, seventy million, two hundred twenty-six thousand, six hundred three".