70915866653 has 2 divisors, whose sum is σ = 70915866654. Its totient is φ = 70915866652.

The previous prime is 70915866641. The next prime is 70915866683. The reversal of 70915866653 is 35666851907.

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., 57114786169 + 13801080484 = 238987^2 + 117478^2 .

It is an emirp because it is prime and its reverse (35666851907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70915866653 - 2¹² = 70915862557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70915866683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35457933326 + 35457933327.

It is an arithmetic number, because the mean of its divisors is an integer number (35457933327).

Almost surely, 2^70915866653 is an apocalyptic number.

It is an amenable number.

70915866653 is a deficient number, since it is larger than the sum of its proper divisors (1).

70915866653 is an equidigital number, since it uses as much as digits as its factorization.

70915866653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 70915866653 in words is "seventy billion, nine hundred fifteen million, eight hundred sixty-six thousand, six hundred fifty-three".