71667071505116 has 12 divisors (see below), whose sum is σ = 125482324590840. Its totient is φ = 35814978764880.

The previous prime is 71667071505101. The next prime is 71667071505181. The reversal of 71667071505116 is 61150517076617.

It is a super-2 number, since 2×71667071505116² (a number of 29 digits) contains 22 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, 4639238231 + ... + 4639253678.

It is an arithmetic number, because the mean of its divisors is an integer number (10456860382570).

Almost surely, 2^{71667071505116} is an apocalyptic number.

It is an amenable number.

71667071505116 is a deficient number, since it is larger than the sum of its proper divisors (53815253085724).

71667071505116 is a wasteful number, since it uses less digits than its factorization.

71667071505116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9278493844 (or 9278493842 counting only the distinct ones).

The product of its (nonzero) digits is 1852200, while the sum is 53.

The spelling of 71667071505116 in words is "seventy-one trillion, six hundred sixty-seven billion, seventy-one million, five hundred five thousand, one hundred sixteen".