71560813550 has 24 divisors (see below), whose sum is σ = 134347077576. Its totient is φ = 28356806240.

The previous prime is 71560813549. The next prime is 71560813559. The reversal of 71560813550 is 5531806517.

It is a junction number, because it is equal to n+sod(n) for n = 71560813498 and 71560813507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71560813559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6682577 + ... + 6693276.

It is an arithmetic number, because the mean of its divisors is an integer number (5597794899).

Almost surely, 2^71560813550 is an apocalyptic number.

71560813550 is a deficient number, since it is larger than the sum of its proper divisors (62786264026).

71560813550 is a wasteful number, since it uses less digits than its factorization.

71560813550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13375972 (or 13375967 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 71560813550 in words is "seventy-one billion, five hundred sixty million, eight hundred thirteen thousand, five hundred fifty".