71561780057114 has 16 divisors (see below), whose sum is σ = 107950207014720. Its totient is φ = 35578406820000.

The previous prime is 71561780056973. The next prime is 71561780057123. The reversal of 71561780057114 is 41175008716517.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2345459 + ... + 12191174.

It is an arithmetic number, because the mean of its divisors is an integer number (6746887938420).

Almost surely, 2^{71561780057114} is an apocalyptic number.

71561780057114 is a deficient number, since it is larger than the sum of its proper divisors (36388426957606).

71561780057114 is a wasteful number, since it uses less digits than its factorization.

71561780057114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14550565.

The product of its (nonzero) digits is 1646400, while the sum is 53.

The spelling of 71561780057114 in words is "seventy-one trillion, five hundred sixty-one billion, seven hundred eighty million, fifty-seven thousand, one hundred fourteen".