1063221116959 has 4 divisors (see below), whose sum is σ = 1063224088816. Its totient is φ = 1063218145104.

The previous prime is 1063221116927. The next prime is 1063221116981. The reversal of 1063221116959 is 9596111223601.

It is a happy number.

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 1063221116959 - 2⁵ = 1063221116927 is a prime.

It is a super-2 number, since 2×1063221116959² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063221116989) 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, 861939 + ... + 1693924.

It is an arithmetic number, because the mean of its divisors is an integer number (265806022204).

Almost surely, 2^{1063221116959} is an apocalyptic number.

1063221116959 is a deficient number, since it is larger than the sum of its proper divisors (2971857).

1063221116959 is an equidigital number, since it uses as much as digits as its factorization.

1063221116959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971856.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 1063221116959 in words is "one trillion, sixty-three billion, two hundred twenty-one million, one hundred sixteen thousand, nine hundred fifty-nine".