71258222291668 has 24 divisors (see below), whose sum is σ = 135257716062504. Its totient is φ = 32715396172800.

The previous prime is 71258222291657. The next prime is 71258222291761. The reversal of 71258222291668 is 86619222285217.

It can be written as a sum of positive squares in 4 ways, for example, as 10738348871364 + 60519873420304 = 3276942^2 + 7779452^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12779448843 + ... + 12779454418.

It is an arithmetic number, because the mean of its divisors is an integer number (5635738169271).

Almost surely, 2^{71258222291668} is an apocalyptic number.

It is an amenable number.

71258222291668 is a deficient number, since it is larger than the sum of its proper divisors (63999493770836).

71258222291668 is a wasteful number, since it uses less digits than its factorization.

71258222291668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25558903323 (or 25558903321 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 61.

The spelling of 71258222291668 in words is "seventy-one trillion, two hundred fifty-eight billion, two hundred twenty-two million, two hundred ninety-one thousand, six hundred sixty-eight".