16631703355 has 4 divisors (see below), whose sum is σ = 19958044032. Its totient is φ = 13305362680.

The previous prime is 16631703307. The next prime is 16631703367. The reversal of 16631703355 is 55330713661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55330713661 = 31 ⋅1784861731.

It is not a de Polignac number, because 16631703355 - 2¹⁷ = 16631572283 is a prime.

It is a super-2 number, since 2×16631703355² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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, 1663170331 + ... + 1663170340.

It is an arithmetic number, because the mean of its divisors is an integer number (4989511008).

Almost surely, 2^16631703355 is an apocalyptic number.

16631703355 is a deficient number, since it is larger than the sum of its proper divisors (3326340677).

16631703355 is an equidigital number, since it uses as much as digits as its factorization.

16631703355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326340676.

The product of its (nonzero) digits is 170100, while the sum is 40.

The spelling of 16631703355 in words is "sixteen billion, six hundred thirty-one million, seven hundred three thousand, three hundred fifty-five".