71161809892222 has 16 divisors (see below), whose sum is σ = 121991920468992. Its totient is φ = 30497856933240.

The previous prime is 71161809892081. The next prime is 71161809892223. The reversal of 71161809892222 is 22229890816117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71161809892223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431563 + ... + 12175225.

It is an arithmetic number, because the mean of its divisors is an integer number (7624495029312).

Almost surely, 2^{71161809892222} is an apocalyptic number.

71161809892222 is a deficient number, since it is larger than the sum of its proper divisors (50830110576770).

71161809892222 is a wasteful number, since it uses less digits than its factorization.

71161809892222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265343.

The product of its (nonzero) digits is 3483648, while the sum is 58.

The spelling of 71161809892222 in words is "seventy-one trillion, one hundred sixty-one billion, eight hundred nine million, eight hundred ninety-two thousand, two hundred twenty-two".