71318565022 has 4 divisors (see below), whose sum is σ = 106977847536. Its totient is φ = 35659282510.

The previous prime is 71318565011. The next prime is 71318565023. The reversal of 71318565022 is 22056581317.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71318565023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17829641254 + ... + 17829641257.

It is an arithmetic number, because the mean of its divisors is an integer number (26744461884).

Almost surely, 2^71318565022 is an apocalyptic number.

71318565022 is a deficient number, since it is larger than the sum of its proper divisors (35659282514).

71318565022 is a wasteful number, since it uses less digits than its factorization.

71318565022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35659282513.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 71318565022 in words is "seventy-one billion, three hundred eighteen million, five hundred sixty-five thousand, twenty-two".