70221716659 has 4 divisors (see below), whose sum is σ = 70233139120. Its totient is φ = 70210294200.

The previous prime is 70221716639. The next prime is 70221716683. The reversal of 70221716659 is 95661712207.

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 70221716659 - 2¹¹ = 70221714611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70221716639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5702004 + ... + 5714305.

It is an arithmetic number, because the mean of its divisors is an integer number (17558284780).

Almost surely, 2^70221716659 is an apocalyptic number.

70221716659 is a deficient number, since it is larger than the sum of its proper divisors (11422461).

70221716659 is a wasteful number, since it uses less digits than its factorization.

70221716659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11422460.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 70221716659 in words is "seventy billion, two hundred twenty-one million, seven hundred sixteen thousand, six hundred fifty-nine".