16220446362663 has 4 divisors (see below), whose sum is σ = 21627261816888. Its totient is φ = 10813630908440.

The previous prime is 16220446362629. The next prime is 16220446362677. The reversal of 16220446362663 is 36626364402261.

16220446362663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16220446362663 - 2⁶ = 16220446362599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16220446362613) 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, 2703407727108 + ... + 2703407727113.

It is an arithmetic number, because the mean of its divisors is an integer number (5406815454222).

Almost surely, 2^{16220446362663} is an apocalyptic number.

16220446362663 is a deficient number, since it is larger than the sum of its proper divisors (5406815454225).

16220446362663 is an equidigital number, since it uses as much as digits as its factorization.

16220446362663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406815454224.

The product of its (nonzero) digits is 8957952, while the sum is 51.

The spelling of 16220446362663 in words is "sixteen trillion, two hundred twenty billion, four hundred forty-six million, three hundred sixty-two thousand, six hundred sixty-three".