71132393166 has 16 divisors (see below), whose sum is σ = 144596996688. Its totient is φ = 23322096000.

The previous prime is 71132393161. The next prime is 71132393209. The reversal of 71132393166 is 66139323117.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71132393161) 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 in 7 ways as a sum of consecutive naturals, for example, 97175035 + ... + 97175766.

It is an arithmetic number, because the mean of its divisors is an integer number (9037312293).

Almost surely, 2^71132393166 is an apocalyptic number.

71132393166 is an abundant number, since it is smaller than the sum of its proper divisors (73464603522).

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

71132393166 is a wasteful number, since it uses less digits than its factorization.

71132393166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194350867.

The product of its digits is 122472, while the sum is 42.

The spelling of 71132393166 in words is "seventy-one billion, one hundred thirty-two million, three hundred ninety-three thousand, one hundred sixty-six".