71130105616 has 20 divisors (see below), whose sum is σ = 142260212224. Its totient is φ = 34417792800.

The previous prime is 71130105581. The next prime is 71130105643. The reversal of 71130105616 is 61650103117.

71130105616 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71703240 + ... + 71704231.

Almost surely, 2^71130105616 is an apocalyptic number.

It is an amenable number.

71130105616 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.

71130105616 is a wasteful number, since it uses less digits than its factorization.

71130105616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143407510 (or 143407504 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The spelling of 71130105616 in words is "seventy-one billion, one hundred thirty million, one hundred five thousand, six hundred sixteen".