70561671701 has 2 divisors, whose sum is σ = 70561671702. Its totient is φ = 70561671700.

The previous prime is 70561671647. The next prime is 70561671793. The reversal of 70561671701 is 10717616507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39374464900 + 31187206801 = 198430^2 + 176599^2 .

It is a cyclic number.

It is not a de Polignac number, because 70561671701 - 2²⁶ = 70494562837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70561671101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35280835850 + 35280835851.

It is an arithmetic number, because the mean of its divisors is an integer number (35280835851).

Almost surely, 2^70561671701 is an apocalyptic number.

It is an amenable number.

70561671701 is a deficient number, since it is larger than the sum of its proper divisors (1).

70561671701 is an equidigital number, since it uses as much as digits as its factorization.

70561671701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 41.

The spelling of 70561671701 in words is "seventy billion, five hundred sixty-one million, six hundred seventy-one thousand, seven hundred one".