71608066418 has 32 divisors (see below), whose sum is σ = 123205757184. Its totient is φ = 30577004352.

The previous prime is 71608066373. The next prime is 71608066421. The reversal of 71608066418 is 81466080617.

It is a super-2 number, since 2×71608066418² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15677171 + ... + 15681737.

It is an arithmetic number, because the mean of its divisors is an integer number (3850179912).

Almost surely, 2^71608066418 is an apocalyptic number.

71608066418 is a deficient number, since it is larger than the sum of its proper divisors (51597690766).

71608066418 is a wasteful number, since it uses less digits than its factorization.

71608066418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8426.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 71608066418 in words is "seventy-one billion, six hundred eight million, sixty-six thousand, four hundred eighteen".