70771322335561 has 2 divisors, whose sum is σ = 70771322335562. Its totient is φ = 70771322335560.

The previous prime is 70771322335523. The next prime is 70771322335577. The reversal of 70771322335561 is 16553322317707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67893315267600 + 2878007067961 = 8239740^2 + 1696469^2 .

It is a cyclic number.

It is not a de Polignac number, because 70771322335561 - 2¹¹ = 70771322333513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70771322335499 and 70771322335508.

It is not a weakly prime, because it can be changed into another prime (70771322335261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35385661167780 + 35385661167781.

It is an arithmetic number, because the mean of its divisors is an integer number (35385661167781).

Almost surely, 2^{70771322335561} is an apocalyptic number.

It is an amenable number.

70771322335561 is a deficient number, since it is larger than the sum of its proper divisors (1).

70771322335561 is an equidigital number, since it uses as much as digits as its factorization.

70771322335561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5556600, while the sum is 52.

The spelling of 70771322335561 in words is "seventy trillion, seven hundred seventy-one billion, three hundred twenty-two million, three hundred thirty-five thousand, five hundred sixty-one".