71106667845321 has 4 divisors (see below), whose sum is σ = 94808890460432. Its totient is φ = 47404445230212.

The previous prime is 71106667845319. The next prime is 71106667845331. The reversal of 71106667845321 is 12354876660117.

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 71106667845321 - 2¹ = 71106667845319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71106667845331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11851111307551 + ... + 11851111307556.

It is an arithmetic number, because the mean of its divisors is an integer number (23702222615108).

Almost surely, 2^{71106667845321} is an apocalyptic number.

It is an amenable number.

71106667845321 is a deficient number, since it is larger than the sum of its proper divisors (23702222615111).

71106667845321 is a wasteful number, since it uses less digits than its factorization.

71106667845321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23702222615110.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 71106667845321 in words is "seventy-one trillion, one hundred six billion, six hundred sixty-seven million, eight hundred forty-five thousand, three hundred twenty-one".