71065040528550 has 48 divisors (see below), whose sum is σ = 176242505985360. Its totient is φ = 18950547853440.

The previous prime is 71065040528549. The next prime is 71065040528597. The reversal of 71065040528550 is 5582504056017.

It is a super-3 number, since 3×71065040528550³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71065040528550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21476824 + ... + 24563876.

It is an arithmetic number, because the mean of its divisors is an integer number (3671718874695).

Almost surely, 2^{71065040528550} is an apocalyptic number.

71065040528550 is an abundant number, since it is smaller than the sum of its proper divisors (105177465456810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71065040528550 is a wasteful number, since it uses less digits than its factorization.

71065040528550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240537 (or 3240532 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 48.

The spelling of 71065040528550 in words is "seventy-one trillion, sixty-five billion, forty million, five hundred twenty-eight thousand, five hundred fifty".