71665100068 has 48 divisors (see below), whose sum is σ = 138476298240. Its totient is φ = 32300532000.

The previous prime is 71665100033. The next prime is 71665100083. The reversal of 71665100068 is 86000156617.

It is a self number, because there is not a number n which added to its sum of digits gives 71665100068.

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, 226543 + ... + 441193.

It is an arithmetic number, because the mean of its divisors is an integer number (2884922880).

Almost surely, 2^71665100068 is an apocalyptic number.

It is an amenable number.

71665100068 is a deficient number, since it is larger than the sum of its proper divisors (66811198172).

71665100068 is a wasteful number, since it uses less digits than its factorization.

71665100068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214888 (or 214886 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 71665100068 in words is "seventy-one billion, six hundred sixty-five million, one hundred thousand, sixty-eight".