71664470022 has 16 divisors (see below), whose sum is σ = 143443710000. Its totient is φ = 23869028352.

The previous prime is 71664470011. The next prime is 71664470051. The reversal of 71664470022 is 22007446617.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4773963 + ... + 4788950.

It is an arithmetic number, because the mean of its divisors is an integer number (8965231875).

Almost surely, 2^71664470022 is an apocalyptic number.

71664470022 is an abundant number, since it is smaller than the sum of its proper divisors (71779239978).

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

71664470022 is a wasteful number, since it uses less digits than its factorization.

71664470022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9564167.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 71664470022 in words is "seventy-one billion, six hundred sixty-four million, four hundred seventy thousand, twenty-two".