71063260146561 has 4 divisors (see below), whose sum is σ = 94751013528752. Its totient is φ = 47375506764372.

The previous prime is 71063260146551. The next prime is 71063260146563. The reversal of 71063260146561 is 16564106236017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 71063260146561 - 2⁶ = 71063260146497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71063260146561.

It is not an unprimeable number, because it can be changed into a prime (71063260146563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11843876691091 + ... + 11843876691096.

It is an arithmetic number, because the mean of its divisors is an integer number (23687753382188).

Almost surely, 2^{71063260146561} is an apocalyptic number.

It is an amenable number.

71063260146561 is a deficient number, since it is larger than the sum of its proper divisors (23687753382191).

71063260146561 is a wasteful number, since it uses less digits than its factorization.

71063260146561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23687753382190.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 71063260146561 in words is "seventy-one trillion, sixty-three billion, two hundred sixty million, one hundred forty-six thousand, five hundred sixty-one".