71643007158 has 8 divisors (see below), whose sum is σ = 143286014328. Its totient is φ = 23881002384.

The previous prime is 71643007127. The next prime is 71643007171. The reversal of 71643007158 is 85170034617.

It is a sphenic number, since it is the product of 3 distinct primes.

71643007158 is an admirable number.

It is a super-5 number, since 5×71643007158⁵ (a number of 55 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5970250591 + ... + 5970250602.

It is an arithmetic number, because the mean of its divisors is an integer number (17910751791).

Almost surely, 2^71643007158 is an apocalyptic number.

71643007158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71643007158 is a wasteful number, since it uses less digits than its factorization.

71643007158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11940501198.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 71643007158 in words is "seventy-one billion, six hundred forty-three million, seven thousand, one hundred fifty-eight".