71667071507006 has 16 divisors (see below), whose sum is σ = 108255316849200. Its totient is φ = 35582113575360.

The previous prime is 71667071506991. The next prime is 71667071507011. The reversal of 71667071507006 is 60070517076617.

It is a happy number.

It is a super-2 number, since 2×71667071507006² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35948900 + ... + 37890071.

It is an arithmetic number, because the mean of its divisors is an integer number (6765957303075).

Almost surely, 2^{71667071507006} is an apocalyptic number.

71667071507006 is a deficient number, since it is larger than the sum of its proper divisors (36588245342194).

71667071507006 is a wasteful number, since it uses less digits than its factorization.

71667071507006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73842379.

The product of its (nonzero) digits is 2593080, while the sum is 53.

The spelling of 71667071507006 in words is "seventy-one trillion, six hundred sixty-seven billion, seventy-one million, five hundred seven thousand, six".