71261258220668 has 12 divisors (see below), whose sum is σ = 124788656633592. Its totient is φ = 35607356325360.

The previous prime is 71261258220643. The next prime is 71261258220709. The reversal of 71261258220668 is 86602285216217.

71261258220668 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5818189355 + ... + 5818201602.

It is an arithmetic number, because the mean of its divisors is an integer number (10399054719466).

Almost surely, 2^{71261258220668} is an apocalyptic number.

It is an amenable number.

71261258220668 is a deficient number, since it is larger than the sum of its proper divisors (53527398412924).

71261258220668 is a wasteful number, since it uses less digits than its factorization.

71261258220668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11636392492 (or 11636392490 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 71261258220668 in words is "seventy-one trillion, two hundred sixty-one billion, two hundred fifty-eight million, two hundred twenty thousand, six hundred sixty-eight".