70656506617 has 2 divisors, whose sum is σ = 70656506618. Its totient is φ = 70656506616.

The previous prime is 70656506611. The next prime is 70656506651. The reversal of 70656506617 is 71660565607.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58324182016 + 12332324601 = 241504^2 + 111051^2 .

It is a cyclic number.

It is not a de Polignac number, because 70656506617 - 2⁷ = 70656506489 is a prime.

It is not a weakly prime, because it can be changed into another prime (70656506611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35328253308 + 35328253309.

It is an arithmetic number, because the mean of its divisors is an integer number (35328253309).

Almost surely, 2^70656506617 is an apocalyptic number.

It is an amenable number.

70656506617 is a deficient number, since it is larger than the sum of its proper divisors (1).

70656506617 is an equidigital number, since it uses as much as digits as its factorization.

70656506617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 70656506617 in words is "seventy billion, six hundred fifty-six million, five hundred six thousand, six hundred seventeen".