70065444017 has 4 divisors (see below), whose sum is σ = 70121542500. Its totient is φ = 70009345536.

The previous prime is 70065444011. The next prime is 70065444023. The reversal of 70065444017 is 71044456007.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (70065444011) and next prime (70065444023).

It can be written as a sum of positive squares in 2 ways, for example, as 19711879201 + 50353564816 = 140399^2 + 224396^2 .

It is a cyclic number.

It is not a de Polignac number, because 70065444017 - 2⁶ = 70065443953 is a prime.

It is a super-2 number, since 2×70065444017² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70065444011) 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, 28047368 + ... + 28049865.

It is an arithmetic number, because the mean of its divisors is an integer number (17530385625).

Almost surely, 2^70065444017 is an apocalyptic number.

It is an amenable number.

70065444017 is a deficient number, since it is larger than the sum of its proper divisors (56098483).

70065444017 is a wasteful number, since it uses less digits than its factorization.

70065444017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56098482.

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 70065444017 in words is "seventy billion, sixty-five million, four hundred forty-four thousand, seventeen".