71656068 has 48 divisors (see below), whose sum is σ = 192003840. Its totient is φ = 20570400.

The previous prime is 71656061. The next prime is 71656073. The reversal of 71656068 is 86065617.

It is not an unprimeable number, because it can be changed into a prime (71656061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11778 + ... + 16793.

It is an arithmetic number, because the mean of its divisors is an integer number (4000080).

Almost surely, 2^71656068 is an apocalyptic number.

It is an amenable number.

71656068 is an abundant number, since it is smaller than the sum of its proper divisors (120347772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71656068 is a wasteful number, since it uses less digits than its factorization.

71656068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28608 (or 28606 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 71656068 is about 8464.9907265159. The cubic root of 71656068 is about 415.3532928054.

The spelling of 71656068 in words is "seventy-one million, six hundred fifty-six thousand, sixty-eight".