71573220466 has 32 divisors (see below), whose sum is σ = 121868644608. Its totient is φ = 31240285440.

The previous prime is 71573220449. The next prime is 71573220487. The reversal of 71573220466 is 66402237517.

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, 598215 + ... + 707818.

It is an arithmetic number, because the mean of its divisors is an integer number (3808395144).

Almost surely, 2^71573220466 is an apocalyptic number.

71573220466 is a deficient number, since it is larger than the sum of its proper divisors (50295424142).

71573220466 is a wasteful number, since it uses less digits than its factorization.

71573220466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306146.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 71573220466 in words is "seventy-one billion, five hundred seventy-three million, two hundred twenty thousand, four hundred sixty-six".