71005162152151 has 4 divisors (see below), whose sum is σ = 74092343115312. Its totient is φ = 67917981188992.

The previous prime is 71005162152149. The next prime is 71005162152161. The reversal of 71005162152151 is 15125126150017.

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 71005162152151 - 2¹ = 71005162152149 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 71005162152151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71005162152161) 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, 1543590481546 + ... + 1543590481591.

It is an arithmetic number, because the mean of its divisors is an integer number (18523085778828).

Almost surely, 2^{71005162152151} is an apocalyptic number.

71005162152151 is a deficient number, since it is larger than the sum of its proper divisors (3087180963161).

71005162152151 is a wasteful number, since it uses less digits than its factorization.

71005162152151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087180963160.

The product of its (nonzero) digits is 21000, while the sum is 37.

The spelling of 71005162152151 in words is "seventy-one trillion, five billion, one hundred sixty-two million, one hundred fifty-two thousand, one hundred fifty-one".