70221716683 has 2 divisors, whose sum is σ = 70221716684. Its totient is φ = 70221716682.

The previous prime is 70221716639. The next prime is 70221716699. The reversal of 70221716683 is 38661712207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70221716683 - 2⁹ = 70221716171 is a prime.

It is not a weakly prime, because it can be changed into another prime (70221716603) 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 as a sum of consecutive naturals, namely, 35110858341 + 35110858342.

It is an arithmetic number, because the mean of its divisors is an integer number (35110858342).

Almost surely, 2^70221716683 is an apocalyptic number.

70221716683 is a deficient number, since it is larger than the sum of its proper divisors (1).

70221716683 is an equidigital number, since it uses as much as digits as its factorization.

70221716683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 70221716683 in words is "seventy billion, two hundred twenty-one million, seven hundred sixteen thousand, six hundred eighty-three".