71110669145 has 4 divisors (see below), whose sum is σ = 85332802980. Its totient is φ = 56888535312.

The previous prime is 71110669111. The next prime is 71110669153. The reversal of 71110669145 is 54196601117.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23466256969 + 47644412176 = 153187^2 + 218276^2 .

It is a cyclic number.

It is not a de Polignac number, because 71110669145 - 2²² = 71106474841 is a prime.

It is an unprimeable number.

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, 7111066910 + ... + 7111066919.

It is an arithmetic number, because the mean of its divisors is an integer number (21333200745).

Almost surely, 2^71110669145 is an apocalyptic number.

It is an amenable number.

71110669145 is a deficient number, since it is larger than the sum of its proper divisors (14222133835).

71110669145 is a wasteful number, since it uses less digits than its factorization.

71110669145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14222133834.

The product of its (nonzero) digits is 45360, while the sum is 41.

The spelling of 71110669145 in words is "seventy-one billion, one hundred ten million, six hundred sixty-nine thousand, one hundred forty-five".