8155359871 has 4 divisors (see below), whose sum is σ = 8157511512. Its totient is φ = 8153208232.

The previous prime is 8155359859. The next prime is 8155359881. The reversal of 8155359871 is 1789535518.

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 8155359871 - 2⁷ = 8155359743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8155359811) 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, 1070125 + ... + 1077718.

It is an arithmetic number, because the mean of its divisors is an integer number (2039377878).

Almost surely, 2^8155359871 is an apocalyptic number.

8155359871 is a deficient number, since it is larger than the sum of its proper divisors (2151641).

8155359871 is a wasteful number, since it uses less digits than its factorization.

8155359871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151640.

The product of its digits is 1512000, while the sum is 52.

The square root of 8155359871 is about 90307.0311271498. The cubic root of 8155359871 is about 2012.8637406188.

The spelling of 8155359871 in words is "eight billion, one hundred fifty-five million, three hundred fifty-nine thousand, eight hundred seventy-one".