870661355097571 has 8 divisors (see below), whose sum is σ = 878772245472000. Its totient is φ = 862572655942920.

The previous prime is 870661355097551. The next prime is 870661355097587. The reversal of 870661355097571 is 175790553166078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 870661355097571 - 2¹¹ = 870661355095523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 870661355097571.

It is not an unprimeable number, because it can be changed into a prime (870661355097551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5547726111 + ... + 5547883048.

It is an arithmetic number, because the mean of its divisors is an integer number (109846530684000).

Almost surely, 2^{870661355097571} is an apocalyptic number.

870661355097571 is a deficient number, since it is larger than the sum of its proper divisors (8110890374429).

870661355097571 is a wasteful number, since it uses less digits than its factorization.

870661355097571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11095609889.

The product of its (nonzero) digits is 333396000, while the sum is 70.

The spelling of 870661355097571 in words is "eight hundred seventy trillion, six hundred sixty-one billion, three hundred fifty-five million, ninety-seven thousand, five hundred seventy-one".