8012155481571 has 4 divisors (see below), whose sum is σ = 10682873975432. Its totient is φ = 5341436987712.

The previous prime is 8012155481563. The next prime is 8012155481579. The reversal of 8012155481571 is 1751845512108.

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

It is an interprime number because it is at equal distance from previous prime (8012155481563) and next prime (8012155481579).

It is not a de Polignac number, because 8012155481571 - 2³ = 8012155481563 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 8012155481571.

It is not an unprimeable number, because it can be changed into a prime (8012155481579) 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, 1335359246926 + ... + 1335359246931.

It is an arithmetic number, because the mean of its divisors is an integer number (2670718493858).

Almost surely, 2^{8012155481571} is an apocalyptic number.

8012155481571 is a deficient number, since it is larger than the sum of its proper divisors (2670718493861).

8012155481571 is a wasteful number, since it uses less digits than its factorization.

8012155481571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670718493860.

The product of its (nonzero) digits is 448000, while the sum is 48.

The spelling of 8012155481571 in words is "eight trillion, twelve billion, one hundred fifty-five million, four hundred eighty-one thousand, five hundred seventy-one".