71525066143 has 4 divisors (see below), whose sum is σ = 71568233200. Its totient is φ = 71481899088.

The previous prime is 71525066141. The next prime is 71525066159. The reversal of 71525066143 is 34166052517.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71525066143 - 2¹ = 71525066141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71525066096 and 71525066105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71525066141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21581043 + ... + 21584356.

It is an arithmetic number, because the mean of its divisors is an integer number (17892058300).

Almost surely, 2^71525066143 is an apocalyptic number.

71525066143 is a deficient number, since it is larger than the sum of its proper divisors (43167057).

71525066143 is a wasteful number, since it uses less digits than its factorization.

71525066143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43167056.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 71525066143 in words is "seventy-one billion, five hundred twenty-five million, sixty-six thousand, one hundred forty-three".