71755140445550 has 24 divisors (see below), whose sum is σ = 137071711535736. Its totient is φ = 27926324929440.

The previous prime is 71755140445517. The next prime is 71755140445609. The reversal of 71755140445550 is 5554404155717.

It is a junction number, because it is equal to n+sod(n) for n = 71755140445492 and 71755140445501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19393279352 + ... + 19393283051.

It is an arithmetic number, because the mean of its divisors is an integer number (5711321313989).

Almost surely, 2^{71755140445550} is an apocalyptic number.

71755140445550 is a deficient number, since it is larger than the sum of its proper divisors (65316571090186).

71755140445550 is a wasteful number, since it uses less digits than its factorization.

71755140445550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38786562452 (or 38786562447 counting only the distinct ones).

The product of its (nonzero) digits is 9800000, while the sum is 53.

The spelling of 71755140445550 in words is "seventy-one trillion, seven hundred fifty-five billion, one hundred forty million, four hundred forty-five thousand, five hundred fifty".